SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)
 SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

The Top Tier of AMSOIL Synthetic Motor Oil. AMSOIL Signature Series Synthetic Motor Oil delivers extraordinary lubrication in all types of automotive gasoline engines. Engineered for enthusiasts seeking maximum protection and performance. Precision-formulated with cutting-edge technology and a longstanding devotion to making the world's best motor oil. The result: engine protection that blows the doors off the highest industry standards.

• 50% more cleaning power vs. AMSOIL OE Motor Oil
• Ideal for turbos & direct injection
• Guaranteed protection for up to 25,000 miles or 1 year

Package sizes include:

Quart Bottle
Gallon Bottle
30-Gallon Drum
55-Gallon Drum

Product Code: ASL • Brand: AMSOIL




MSDS Data Sheet French Data Sheet

Product Details Tech Data Reviews & RatingRelated Videos

Product Applications
AMSOIL Signature Series Synthetic Motor Oil is excellent for use in all types of gasoline-fueled vehicles. It is recommended for all domestic and foreign vehicles requiring any of the listed performance specifications:

Product Application Specs

• API SN (Resource Conserving), SM
• ACEA A5/B5, A1/B1
• Honda HTO-06
• Ford WSS-M2C946-A, WSS-M2C929-A
• Chrysler MS-6395
• ILSAC GF-5, GF-4
• GM dexos1™ Gen 2 (supersedes LL-A-025, 6094M and 4718M): Fortified with detergents that exceed dexos1™ Gen 2 sulfated ash specifications.

Product Description
AMSOIL Signature Series Synthetic Motor Oil delivers extraordinary lubrication in all types of automotive gasoline engines. By combining industry-premier synthetic technology with AMSOIL premium additives, Signature Series Synthetic Motor Oil exceeds the higher performance demands of modern engines. It withstands the stress of higher horsepower, higher heat and complicated emissions control systems. Signature Series Synthetic Motor Oil is engineered to outperform competitive conventional and synthetic motor oils. It delivers long-lasting performance and protection.

AMSOIL, the leader in automotive synthetic lubrication, produced the World's first API-qualified synthetic motor oil in 1972. Trust the extensive experience of AMSOIL, the First in Synthetics®, to do the best job protecting your engine.

Protects Against Engine Wear
AMSOIL Signature Series Synthetic Motor Oil develops a strong fluid film that keeps metal surfaces separated while its robust anti-wear additives further reduce wear in metal-to-metal contact regions for maximum engine life. The Sequence IVA Engine Test, which must be passed to meet the industry-standard API SN specification, simulates extended periods of stop-and-go driving.

For 100 hours, the test engine cycles between 50 minutes of idling and 10 minutes of elevated rpm - conditions that encourage engine wear. The camshaft is then measured for wear in 84 locations and an average score is determined. We used Signature Series 0W-20, the lightest viscosity in the line, to further increase the severity of the test. AMSOIL Signature Series Synthetic Motor Oil provided 75 percent more engine protection against horsepower loss and wear* than required by the industry standard, extending the life of vital components like pistons and cams.

Cam Lobes Wear Test - AMSOIL SS reduces cam wear
sequence IVA engine test results
*Based on independent testing of AMSOIL Signature Series 0W-20, in ASTM D6891 as required by the API SN specification.

Protects Pistons from Low-Speed Pre-Ignition (LSPI)
We armed Signature Series with an advanced detergent system that protects against harmful deposits and low-speed pre-ignition (LSPI). Most new engines feature gasoline direct injection (GDI), often combined with a turbocharger to boost power and improve fuel economy. These new technologies, when combined with a poorly formulated motor oil, promote LSPI and threaten engine operation. LSPI is the spontaneous ignition of the fuel/air mixture prior to spark-triggered ignition. It occurs in today's advanced engines and is much more destructive than typical pre-ignition.

Original equipment manufacturers (OEMs) like GM* have addressed the issue by designing tests to determine a motor oil's ability to prevent LSPI. The GM test allows up to five LSPI events to receive a passing score. Signature Series Synthetic Motor Oil provided 100 percent protection against LSPI* - zero occurrences were recorded.

LSPI piston damage when competitors motor oil is used

Protects Turbochargers
Our unique synthetic formulation is inherently stable to resist oxidation and neutralize acids. Signature Series Motor Oil provides outstanding protection against deposits common to high-temperature engine environments. The tremendous heat and stress turbos create can cause some oils to break down and form harmful bearing deposits through a process known as turbo coking. Over time, turbos can suffer reduced performance or fail altogether.

We challenged Signature Series to the GM Turbo Coking Test, which consists of 2000 cycles of extreme heat soaks. An oil must limit the temperature change within the turbocharger to 13 percent or less to pass the test. Signature Series limited the temperature increase to only 3.6 percent, protecting the turbocharger 72 percent better than required* by the GM dexos1® Gen 2 specification.

amsoil turbo bearing shaft protection

Extends Drains: Protection Guaranteed
AMSOIL Signature Series 25,000 miles drain interval technologyAMSOIL Signature Series Synthetic Motor Oil provides reserve protection, allowing you to go longer between oil changes if you choose up to 25,000 miles, 700 hours of operation or one year, whichever comes first*. Our unique synthetic formulation and long-drain additive system are inherently stable to resist oxidation and neutralize acids over longer periods. Signature Series is designed to deliver outstanding engine protection, cleanliness and performance over extended drain intervals - guaranteed. It provides peace of mind so you can fit oil changes into your schedule.

Oil Filter:

Any brand of oil filter may be used with Signature Series Synthetic Motor Oil. For maximum convenience, however, use an AMSOIL Ea® Oil Filter. Made of fully synthetic media with greater filtering efficiency and dirt-holding capacity than conventional filters, Ea Oil Filters are recommended for 25,000 miles/12 months or 15,000 miles/12 months, depending on application, which coincides with Signature Series' once-a-year drain interval. While Signature Series' 12-month service life remains intact if a non-Ea Oil Filter is used, the filter must be changed according to its manufacturer's recommendations.

Trusted by Professional Engine Builders

Engine Masters ChallengeDedicated engine builders and mechanics put in long hours honing their craft. These architects of powerful, high-performance engines turn to Signature Series to protect their passion.

"When we use AMSOIL, I don't worry about a film breakdown or an oil breakdown - and the oil pressure is always consistent. We've tested oils back-to-back on the dyno in our shop and we're always able to make more power with AMSOIL."

-Brett Bowers, Engine Masters Competitor and Professional Engine Builder

Maximum Cleaning Power to Battle Sludge

AMSOIL Signature Series offers Maximum Cleaning Power to Battle SludgeAMSOIL Signature Series Synthetic Motor Oil has 50 percent more detergents* to help keep oil passages clean and promote oil circulation.

Engine failures due to sludge are often caused by a plugged oil pick-up tube screen - the motor is effectively starved of oil. The Sequence VG Engine Test measures an oil's ability to prevent sludge. During the test, a Ford 4.6L engine is subjected to sludge-inducing conditions for 216 hours. The industry standard allows for 10 percent blockage before the motor oil fails the test. Signature Series produced a screen virtually free from sludge (see image). Its detergent and dispersant additives are so effective, Signature Series provides 90 percent better protection against sludge.

• *Based on independent testing of AMSOIL Signature Series 5w-30 motor oil, in the LSPI engine test as required for the GM dexos 1® Gen 2 specification.
• *Based on independent testing of AMSOIL Signature Series 5W-30 in the GM turbo coking test.
• *vs. AMSOIL OE Motor Oil
• *Based on independent testing of AMSOIL Signature Series 5W-30 in the ASTM D6593 engine test for oil screen plugging as required by the API SN specification.
* All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use. All products advertised here are developed by AMSOIL for use in the applications shown.

Preserves Horsepower
The extreme durability of Signature Series Motor Oil ensures your engine runs stronger, for longer. We installed Signature Series 5W-30 Synthetic Motor Oil in a Ford* F-150 with a new 3.5L Ecoboost engine to test its ability to protect turbocharged direct-injection (TDGI) engines from torque and horsepower loss during extended drain intervals up to 25,000 miles. Power sweeps were done at the beginning and end of the test to evaluate horsepower and torque retention. As the graph shows, Signature Series helped maintain engine performance throughout the 100,000 mile test.

horsepower degradation test results

Limits Oil Consumption
Signature Series has a uniform molecular structure that limits evaporation and keeps it where it's needed most - protecting your engine. Volatility (burn-off) occurs when oil gets hot, causing lighter molecules to burn off or evaporate. This leads to oil thickening, additive imbalance, higher emissions and oil consumption. The NOACK Volatility test is the industry standard for evaluating motor oil high temperature evaporation. It measures the percentage of burn-off after a motor oil is placed under constant airflow at 482°F for 1 hour. A lower number indicates a better resistance to evaporation. Signature Series falls far below the API limit for volatility, reducing the need for frequent oil top-offs and limiting vehicle emissions.

noack volatility test results

Easier Cold-Starts
Signature Series Synthetic Motor Oil does not contain paraffins (wax) and stays fluid in temperatures of -58°F and lower. Extreme cold causes other motor oils to thicken, starving vital moving parts of lubrication, accelerating wear and even preventing vehicles from starting. Signature Series provides 66 percent better cold-temperature performance for easier starting, better fuel economy, improved oil flow (as seen below) and reduced wear.

pour point test results

Maintains Protective Viscosity
We formulated Signature Series with superior thermal durability that resists breakdown better than conventional and synthetic motor oils. The Sequence IIIH Test uses the Chrysler 3.6L Pentastar engine to evaluate a motor oil's ability to resist the damaging effects of heat. The test is conducted with oil temperatures of 304°F, 100°F hotter than normal operation, to accelerate oil thickening and deposits. Despite the extreme conditions, Signature Series kept pistons clean and held thickening to only 6 percent, a minimal amount compared to the proposed specification limit of 150 percent*. This stay-in-grade performance helps maintain maximum power and fuel economy while also ensuring advanced technologies like variable valve timing (VVT) operate as designed throughout the entire drain interval.

sequence III-H test results

• *Based on proposed ILSAC GF-5 Plus specification.
*All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use. All products advertised here are developed by AMSOIL for use in the applications shown.

SERVICE LIFE
Normal Service: Up to 25,000 miles, 700 hours of operation or one year, whichever comes first, in personal vehicles not operat-ing under severe service.

Severe Service: Up to 15,000 miles, 700 hours of operation or one year, whichever comes first. Severe service conditions include commercial or fleet vehicles; excessive idling; or frequenttowing, hauling, plowing or driving in dusty conditions.
• Modified engines (non-stock), racing vehicles and vehicles using alternative fuels (E85, CNG, propane, etc.) are excluded from extended drain interval recommendations.
• Change at the vehicle manufacturer’s recommended drain interval outside U.S. and Canada.
• AMSOIL Ea® Full-Flow Oil Filters are designed for extended drain intervals. Do not exceed 12,000 miles or one year with other brand filters unless longer intervals are recommended by the vehicle manufacturer. Always change filter when changing oil.
• Check oil regularly to maintain proper fill levels.

AMSOIL Ea Full-Flow Oil Filters stop smaller particles, flow more oil and last longer than regular filters. For best performance, use AMSOIL Ea Full-Flow Oil Filters.

COMPATIBILITY

AMSOIL Signature Series Synthetic Motor Oil is compatiblewith other conventional and synthetic motor oils. Mixing other oils with AMSOIL motor oils, however, will shorten the oil’s life expectancy and reduce its performance benefits. AMSOIL does not support extended drain intervals where oils have been mixed.

Aftermarket oil additives are not recommended for use with AMSOIL synthetic motor oils.

HEALTH & SAFETY
This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Material Safety Data Sheet (MSDS).

Click here to view the MSDS Data Sheet for AMSOIL ASL.

Keep out of the reach of children. Don't pollute. Return used oil to collection centers.

TYPICAL TECHNICAL PROPERTIES
Signature Series 100% Synthetic 5W-30 Motor Oil (ASL)
Kinematic Viscosity @ 100°C, cSt (ASTM D-445)10.3
Kinematic Viscosity @ 40°C, cSt (ASTM D-445)59.7
Viscosity Index (ASTM D-2270)162
CCS Viscosity, cP @ (°C) (ASTM D-5293)3968 (-30)
Flash Point °C (°F) (ASTM D-92)220 (428)
Fire Point °C (°F) (ASTM D-92)244 (471)
Pour Point °C (°F) (ASTM D-97)-50 (-58)
NOACK Volatility, % weight loss (g/100g) (ASTM D-5800)6.7
High Temperature/High Shear Viscosity
@ 150°C, 1.0 X 106 s.-1), cP (ASTM D-5481)
3.11
Total Base Number (ASTM D-2896)12.5

LSPI Super Knock Prevention

Sequence IIIG Engine Test + Motor Oil Comparison

Cold Flow Pour Test AMSOIL vs Conventional Motor Oil

Did this product meet your expectations?

(click on a star to rate)
Product Name: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)
Current Rating: 4.97 out of 5 stars
Total Votes: 1008 vote(s)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Asphalt F150: space

Only oil/filter i will ever buy

I use this oil in my 2013 F150 with the eco-boost 3.5L engine. Truck burns or uses zero oil between oil changes(once a year). I only drive about 7,000 miles a year. I use Amsoil because I know Amsoil makes the best products available.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bubba: space

Long time user

Been using AMSOIL since the 70's in many cars and trucks. Sold one truck to a mechanic after 204K miles. He said it was the cleanest engine he' ever seen.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by rrigsby24: space

If your not an Amsoil guy, your doing it wrong

Customer for 7 months. I can't say anything someone else hasn't said already. This was for my Dad's girlfriend car. We have my truck, his truck, her SUV, my mower all on amsoil. My truck is all done. Engine, tranny, rear end, transfer case. Waiting to put in coolant. It sells itself. They say everything drives.i use signature series and will never use anything else in any motor I ever own.dealerahips can say whatever they want, just stinks you have to change within a certain mileage to keep warranty cause this oil goes forever compared to rest. Use it and see!!!!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Sierra owner 12: space

Good oil, keeping the motor clean

I chose to go 0-40 for both cold flow and film strength at the running temps. Motor is getting cleaner every oil change and is running great. I tow with confidence and will continue to run the first in synthetics

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by TM: space

Best oil you can get!

After switching over to AMSOIL Signiture Series 5W30 in my '07 Prius, I couldn't be happier. The gas motor is running very smoothly and more efficiently since I have owned it! Not too shabby considering it has 124K+ miles on it! This oil is the real deal. If you are serious about keeping your car in the best condition for as long as possible, there isn't a better oil out there that can deliver on that than AMSOIL.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike T: space

Best oil I have found yet

Back in 2006 I have swivhed from other brands to Amsoil. Based on some independent test results, and most importantly a friend. Who have tested his 12000 mile oil being Amsoil, on 45000 mile vehicle, that used amsoil since new. Test results sugested fillowing: 1) oil is 6000-7000 mile old 2) engine is 15000-25000 miles old 3) if lubrication continues as before, engine should ladt over 300000 miles.
That was enough info for me to switch, also Mobil 1 that I was using at the time, came with less promising test results.
Since the switch I have been using Amsoil in every car, and truck I owned. Never had a failure due to lubrication. And most importantly have saved a bunch of money, on changing oil once per year. Signature series, along with EA filter can last up to 25000 miles. I would never go past 15000 miles.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Duff: space

Best stuff

I have a 05 ram 2500 HD 250000 miles on it still runs like a dream

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by John: space

In year's past ....

I used this blend for years until I changed to the European blend and it worked very well ....

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mario: space

Yes

Good

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Nick/repair tech/enthusiast: space

Best oil you can buy

The highest quality oil for everything with and engine, hands down.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Big Al: space

Great stuff

I've used Amsoil over the last 30 plus years and never had a problem with any of the product. I use it in offroad vehicles, 4x4 Jeeps, turbo charged engines, NA engines and anything else that benefits from a high quality synthetic lubricant.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Hubert: space

I have been using Amsoil products since 1984.

I have been using Amsoil 100% synthetic engine oils in all my cars, my wife cars since 1984.
At first it was 10w-40 AMO, then in 2002 I switched to 5w-30 ASL. I refuse to use the 5w-20 and 0w-20
oil, I feel my engine is better protected with the 5w-30. I also use the oil filters, the grease.
They are simply high quality, great products and the service is great. I order online via the Amsoil website since 2001. I get my order within a couple of days, and there is never any mistakes.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tads Subaru: space

Top quality oil

I have used Amsoil signature oil for over a 100,000 miles in my vehicle. I tried other oils but they did not last or perform up to my standards.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Racing girl: space

This is my go to for my truck

I can go a long time between oil changes with the signature series 5W 20 oil, it is amazing how much better my truck has been running since I have been using it. I haven't found a con with it yet, just all pros!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jay: space

GREAT STUFF

I have used Amsoil for many years, I use it in all my vehicles everything from my daily driver to my classic and antique cars, I even order it for my friends and family who all love how it works and the convenience of use ie. Once a year oil change.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Sacco: space

I would buy this oil again

.............. .............

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Larry: space

Good Product

AMSOIL Signature Series 5W-30 Motor Oil
keeps my car running smoothly.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Animal: space

Great product

This product has Pierier antiwear property is

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chuck: space

I always use Amsoil

I've been using Amsoil oil for more than 20 years so when I bought a used 2011 Toyota Highlander that requires 0W20 oil I chose Amsoil Signature. I noticed that the my SUV used less oil with Amsoil compared to whatever the dealership put in it. I've had several vehicles that even after 10,000 miles used virtually no oil when using Amsoil.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by None: space

I love the oil, all of it.

I have been using Amsoil for years. Commutes for me is 40 to 50 kms oneway and I can run Amsoil and never have to add oil. Had an old car overheat in Calgary one summer due to traffic on the deerfoot trail and there was no problem afterwards with the car or the oil.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Trevor: space

I have bought this for years!

I have used this product for years, it gives my vehicles top notch protection!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Harley Cop: space

Beats sliced bread and bottled beer

I have used Amsoil products since 2003. Never a problem. I have recommended it to friends without any qualms.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by DJM: space

Best product ever, life time customer

Ever since discovering this oil in 2005 I've never used anything else, and it's never let me down. 15k miles between oil changes and it's still gold in color not black like others.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chris: space

Love this product

I use the product in my 2013 Dodge Ram 5.7L.
I believe I have increased fuel mileage and the truck runs great!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by DoubleD: space

I will never buy another oil again

I have used amsoil in my motorcycle and personal vehicles for years. All of them perform perfectly.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Lando: space

I would buy this product again and again

Product works amazing! No issues

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ernie: space

I will buy all amsoil products especially oil an power foam

Love the oil never had issues power foam is the best out there if ya know how to use it correctly.. very happy with the results and products..

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Andy: space

I will use this for as long as I live

Amsoil is de bessss!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Smilinjack: space

Never lets you down Never fails. Actually works as advertize

Smilinjack has been using AMSOIL 1030,1040 2Cycle oil, Power Foam, oil and air filters and Performance Improver continually since 1979. Once we tried it, have never ever needed or used anything else. Automotive use, lawnmower, lawn tractor, boat motors and my portable generator all perform well with AmsOil in the crankcase. Excellent products. Knew a good thing when we first found it and will never go to anything else. EOM

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Joe: space

I use nothing but Amsoil for the last 8 years.

Great product, love the extended drain capability.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tom: space

Amsoil Signature Oil

I have been using Amsoil in every vehicle I have owned for the past 15 years. I like the extra protection and only changing oil once a year.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Robert: space

yes

your car runs great

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Brian: space

I keep this stuff in my shop by the case.

I just had a 600 horse 460 Ford built and put in my truck and this oil is the best insurance for a hydraulic roller cam motor in my honest opinion..

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rob: space

Great product at any price

This product goes in all my vehicles!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Alex: space

Will buy again

Used it in my 2015 Ford Fiesta rally car. Seems to be working.
will buy again in couple months when time comes to change oil and filter!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mack: space

ONLY THE BEST WILL DO!!

Well, I am not the guy who owns a mega-truck or 5 SUV's. I have the "love of my life" who's stuck with me for 38 years and a major cardiac failure. My goal is to make sure that this investment of my life sticks around for awhile. Everyday she gets in her 2013 Honda CR-V and takes to the roads. Her rig WILL have the BEST I can afford protecting her. This is why when it comes to the products you make, they will be used. When the BEST is used there is no need for excuses!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Craig Sr.: space

Don't know where to start when talking about GREAT PRODUCTS!

I have been around cars and trucks since I was 11 years old...rebuilding, normal maintenance, restoring, and mechanical. At almost 70 I can tell you that my pride and joy is a 1998 Chrysler Town & Country LXI mini van. I proudly have 385K Amsoil miles and it still runs like new. I get exceptional mileage, no smoke from exhaust, no rough idling, no engine noise (that most older motors get), and can say after sitting in the drivers seat all those miles...I still love to drive it and see what new gets better! I am constantly surprised at how smooth a quiet the motor runs. When I take it get my tires rotated they always comment on how well it runs...here is the irony. When trying to explain about additives there is a blank look as people just don't understand that synthetic oil is engineered not manufactured. A lot of time, research dollars, and effort has gone into the making of each product. I will always explain the benefits of Amsoil when asked...just get tired of people that are ignorant to the science and technology that has made this product what it is. I have been a 20+ year user and will always continue! Thanks Amsoil for sticking to your desire to be the best!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dennis: space

I will buy this product again

I use this in all my car's and trucks

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Derek: space

I wont buy anything else!!

Best oil on the market!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jerry: space

I like Amsoil

I've been using Amsoil products for many years. I don't have to worry if I've gone over the 5,000 mile interval, because I know Amsoil will protect my engines. The oil filters are top grade, and great to use with Amsoil. I also use many other AMSOIL products. The gun cleaner and gun oil is excellent for my police service revolver and I use it faithfully, knowing it will protect my pistol, shotgun and assault weapon. The cost may be slightly higher, but the protection is excellent and guaranteed to perform.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Boosted: space

Best oil on the market

It's simply great oil made for great engines.
If you have a boosted engine stick with the best, you won't regret it.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bones67: space

So not want to useat any other oil

Have used for years on my 2000 Chevy Impala, 1995 Toyota corolla, 2010 and 20 12 Toyota Prius, and will be on my 20 17 Rav4 b

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by C6: space

Ow20

Oil exceed all expectations.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Danny: space

Love this product

In my truck

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jake: space

Great product

I use it in my 2014 Chevy Silverado

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike D: space

Only product I use

Since day 1 of the first oil change, and several others, 45K miles later it's still running like a champ. I've been using Amsoil for years. Nothing will change my mind.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Wheelchair Pete: space

Great all season protection, IMO

Been using this in my DD/cars for the past 10+ years and never any oil issues.
Good stuff.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by LadyTuner: space

11 years of the best!

I converted my car to Amsoil 11 years ago when I first bought her. She was 4 years old and had 78k miles. Once I changed her to Amsoil, she instantly ran better. Now at 176k miles, she has the cleanest valves any mechanic has seen! I'm proud to be raised on Amsoil

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Cycotravlr: space

The Best

I use Amsoil Signature Series 5W-30 sinthetic oil in my 2006 Solstice and my 2013 F-150. Amsoil is the Best and wouldn't use anything else.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by racinjayson: space

I have bought, will continue to buy

This is a great product and I use it in all of my vehicles. The biggest difference is that all my motors run quieter than any other product I have tried including royal purper. Could not be happier.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jim: space

Amsoil is the only fluids I use, period!

I have 0 complaints about any product that I've used yet. My 06 Silverado and 07 Trailblazer both get Amsoil. 15k Mike changes with 0 issue

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by GREEN FLAMES: space

1ST TIME BUYER

I HAVE A BRAND NEW 383 STROKER ENGINE IN MY 2004 SILVERADO. IT WAS RECOMMENDED TO PUT A GOOD OIL IN MY ENGINE AFTER THE BREAK IN OIL WAS CHANGED.READ REVIEWS ON SEVERAL DIFFERENT OILS AND REALLY LIKED WHAT I READ ABOUT AMSOIL. WHEN I FIRST GOT MY ORDER IN THE FIRST THING I NOTICED WAS THE BOTTLES WERE MADE DIFFERENT THEN ANYTHING ELSE I EVER USED. THEY WERE THICKER PLASTIC AND ARE POUR FREINDLY. DIDNT NOT HAVE TO WORRY ABOUT SPILLING OIL ON MY NEW ENGINE.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Stan: space

Best there is

Best you can buy.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Kyle: space

My go to oil

Great product

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chris W: space

I WILL buy this product again.

AMSOIL is THE ONLY oil and lubrication product I use in everything I own. I would put this up against any other synthetic lubricant any day.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dennis: space

I Would definitely buy this product again.

I have been using this oil in my06 Dodge Ram for years. Makes better oil pressure than other brands.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rusty: space

Great oil

Run, it in all three vehicles that call for 5 w 20wt.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tim: space

Quality product

I have used Amsiol products in all my vehicles for several years with good results.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mismo Titan: space

Titan Loves It

Switched to amsoil and my engine is quieter, and runs better. I tow a lot with my truck and know with amsoil that the oil is breaking down under heavy load.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Blu1: space

Few choices

Not many choices for 5w-50. This is the only real quality option. Thanks for making the wt.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Cliff: space

There is no other oil like AMSOIL

I own a pickup and two autos, two utility tractors, four chain saws, three weed eaters and eight small engine machines. I have AMSOIL in each and every one. My Pickup is used to pull a large trailer and for snow plowing for several customers. I also use fuel cleaners, fuel preserve products, oil mix and grease gun tubes. I have experienced oil leaking and oil burning motors stop doing both and a one pull start on the small motors.There is no other oil and other products that compare to AMSOIL.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by CJ: space

Long time uses

Been using Amsoil 20 years and have had no problems. Put oil in my Durmax and put the big filter on and did need to change oil only once.
Amsoil has been making oil for years, now everyone is trying too.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Cycotravlr: space

I will buy this again.

I use 0-20 Amsoil in my Family crossover. I run it 15,000 mile between changes and the oil still looks clean when I drain it.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Collin: space

I will only buy this product from now on

The Signature Series oil is the best and most money-worth-it oil that's available from Amsoil...period!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by headhound: space

Keeps my cars running long and strong

Minimizes actual engine wear while managing fuel economy. Yearly oil changes is great.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Otsg392: space

I will buy this product again.

I put Amsoil 5w - 50 I'm my 2012 Boss 302. Product works great for regular driving or hittting the track.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by The bear: space

Have used this product for over 25 years

I used this product in my SUV, runs smooth get better mileage and start very well in extremely cold weather. I used their product in all my vehicles and small engines.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Larry for Life: space

Incredible Stuff

Amsoil makes a huge difference in the performance and longevity of your vehicle. Nothing else goes into my cars, trucks, lawn mowers, chainsaws, etc.

Item Reviewed: Signature Series Motor Oils

Reviewed by Aatir: space

Improved engine performance on SS 5w30

Driven my Honda 8000 miles on Amsoil SS 5W30.Total mileage of car 33000 miles. Prominent enhancement in engine performance. Quiter engine, better cold start and slightly better mileage observed after shifting to Amsoil. Great product.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike G in SD: space

I will buy this product many, many more times...great stuff!

I've been using AMSOIL motor oil for just over 5 years now and been very satisfied, no complaints...ever!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Al: space

Great product

I use it in all the engines in my house. My cars, lawn mower, pressure washer and generator. I feel my equipment runs better and more efficient.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by soOldithurts: space

Use it in track car and without any problems

I use this oil in my track car. I have a magnetic plug and nothing has shown up there. The filter is also clean after each use (I check it). Oil pressures are good on track. I plan to use this oil well into the future.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Andrew: space

I would definitely buy this!

I run this oil in my 2003 Honda S2000 and I love it. Had my head rebuilt and checked the cylinder walls, cams, etc. with 111k miles on the engine with force induction. There were barely any wear at all! I will always run Amsoil.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Vader3: space

This is the only oil I will use is my Chevy Blazer

I use the 5W30 along with the Amsoil oil filter and I run it 15,000 miles before I change the oil. I also use the Amsoil AFT which can keep the transmission temperature up to 60 degrees cooler. Reduce friction and save your equipment

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Paul: space

Been using for years

I use only Amsoil in all my vehicles--engine, trans, and differential. Best products on the market.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Drake: space

Will buy again

Lasts well. Color is still clean after 5k. Gas milage is slightly higher. No oil leaks in a Ford Taurus with 200k.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JHPAINT: space

Great product

Great oil for direct injection engines

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Johny: space

Been using this for 15 years

I've been using this since 2003 in my Toyota Solara that has the V6 which is prone to sludge. I now have 470,000 miles on it and still running strong and does not smoke. I change it and the filter about every 10 to 15 thousand miles, sometime longer.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JC: space

Great Product

In work&personal vehicle.Work car approaching 300,000 miles-Starts easy in old weather-improves gas mileage-don't have to change every 3000 miles as you have to with conventional oil-can't think of anything negative

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by drew: space

High Heat Low Friction

I use this oil in a variety of cars and trucks i service. Some of these cars are turbos and some are natural aspiration. No matter the heat load in any of these cars or trucks they seem to have extremely low friction when i inspected during engine rebuilds.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Drew: space

The Best Oil Ever Made

I buy this oil about once a year for a friends 2004 Lincoln Town Car. He only drives around the city and occasionally to Richmond Virginia. He always gets a 19~20 mpg in the slow city with the ac blasting and on the highway 25~27 mpg. That is a 280 hp 4.6 liter v-8. The engine runs so smooth now its a huge difference from before the use of amsoil.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Brian: space

Yes

In my motocycle

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Nick: space

Simply the best

The to go motor oil for all 0W-20, 0W-30, 5W-20, 5W-30, 10W-30 applications except europeans.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Sam: space

My engine is super quiet now

My engine is really quiet now. That tells me that Amsoil is lubricating the engine in a way that the other oils can't. I changed all the fluids on my 2017 Chevrolet 2500 HD 4x4. Fuel mileage is up and vehicle noise ( engine, transmission, transfer case and differentials ) is down. it truly makes a difference.
I've also switched to Amsoil in wife's 2017 Ford Explorer, my son's 2015 Ram 1500 and my 2015 Tahoe Q7i SF boat.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Poppabear: space

Love this stuff

I use Amsoil products in my truck and my wife car. I started using Amsoil products in my race car many years ago and had such good luck with them I have been using them in anything I own with a gasoline engine. My truck has over 200,000 miles on it and it runs like new. We use my wife's car for road trips and I always ride with confidence in Amsoil products. I would definitely recommend Amsoil to family and friends..

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Scott: space

oil

great stuff

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Two Hair: space

I have been buying this product again and again

I have been using this product (5w-30 signature series) for sixteen years. A little better gas mileage and I feel the auto is better protected in our high heat that we get during the summers here.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bill: space

Very good product and very reasonably priced

We Transport trailers with our pickup and run only Amsoil in it. Love the extended oil changes, especially since we run so many miles. Because of the ability to run more miles on it, it actually is cheaper to run Amsoil. Wouldn't run anything else!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by KB: space

Best Product on the Market

By far the best motor oil I've used!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tim: space

Buy nothing but smsoil.

Use it in honda crv.Great oil. Long life.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pose: space

Engine Oil

I only trust Amsoil in all of my vehicles.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dale: space

Mechanics Amazed at inside of engine during gasket repair

A couple of years ago I had my 1998 Chevrolet Silverado in the shop for an intake gasket repair. About mid-day I received a call from the repair shop asking me what kind of oil I ran in the engine. They were amazed as they told me they had never seen an engine so clean inside. I told them I had been running Amsoil in the engine for the past 1.5 years. I had heard of Amsoil for years and talked to a diesel mechanic a few years before and he ran Amsoil in everything he had. I figured if a diesel mechanic ran it in his vehicles, motorcycles, and lawn equipment it was good stuff. I have not been disappointed, I immediately noticed easier cold starts and better gas mileage in my vehicles. With the miles my familiy's vehicles travel, a once a year oil change with the extended life best synthetic oil on the market is a convenient and cost effective solution for ensuring my vehicles engines are protected with great lubrication. And the added bonus of creating less waste for our environment is big for me as well. Convenient online shopping and dependable delivery put my vehicle's lifeblood in my hands within days of ordering it. Love the product and will be using it for years to come.
Dale

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jean: space

i would buy more

very good

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by daves jeep: space

yes i would buy it again

its a great oil I have every use in my cars!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dan: space

Nothing but the best

I use Amsoil oil for everything I own car pick up motorcycle lawn mowers weed eaters I wouldn't use anything less
The best is Amsoil oil.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Shane: space

The Best

I have tried every synthetic oil over the years.Then I tried Amsoil signature series 5w-20 in my 2017 dodge Ram with the 5.7 hemi.Notice a big difference in smoothness and performance,like pouring a few energy drinks in the engine!!! I change my oil every six months, I wont be close to 25,000 miles but if I go over six months I know the engine will be okay. I have changed my oil with other synthetics that claim they can go 15,000 or one year, I changed mine at 6,500 and it was black and smelled burnt and was already starting to sludge.You won't get that with Amsoil. It cost a little more but it's well worth it !!! If your going to keep your truck or car for a long time Amsoil is the way to go,If you lease every two years don't bother.Give it a try it's THE BEST!!!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Binor: space

Only oil I use

The day I bought my 2005 F250 4x4 I brought it home and drained the stock oil and refilled with 0W20 amsoil and amsoil oil filter. Since that day my truck has never seen any other oil or filter. My truck is now 13 years old and it runs like the day I bought it. I change my oil once a year no more no less ! ! !

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JC: space

Signature series 5W-30 motor oil

I have used the Signature series oil for years. I like having the protective properties of the oil with extended change intervals. I have one vehicle with over 225,000 miles runs great and uses zero oil between changes.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Joe: space

A top oil

Use this in my Mustang GT....won't use anything else. Lots of debate as far as what's best but this is my favorite.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by David: space

If there was a better lubricant anywhere, I would be use it.

I have been an AMSOIL user for many years, and as a mechanical engineer know the value
of proper lubrication. When you know a company is using the best additives, and the best base stocks for their oil, the choice of where to buy is easy.

In the final analysis, AMSOIL is a bargain compared to other brands.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mark: space

Go with the best!

AMSOIL is in every engine I own!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Michael: space

Awesome

Simply the best oil to use. Thank you amsoil

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Sean: space

High quality

Like all signature series it is the best oil I've used. Amsoil is one of the few oil manufacturers that shows testing results. They also sell testing kits. Their oil is top notch. Mobile 1 annual protection is basically a cheaper version of this. ( as it's not as good) if you want the best protection this is it. It also pays for itself as you can run it longer.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Christian Marcel: space

Too good to believe.

On January 20,18, I purchased a 2008 Dodge Durango w/ a 5.7, 4x4. It had 89,000 miles on it
The average mpg was 13.4. I was not impressed, and I don't drive like speed Racer. I do love the truck the power and the ride. I had used mobil one synthetic oil and filters with no change in mpg. So I decided to invest in Amsoil. I went with the recommend 5/20 signature series. I believe go big or go home. My mpg average moved up to 14.5 mpg. I also took a 4 hour each way road trip and got 19.9 mpg at 72 mph. I thought that was good for moving an 7000lb. all wheel drive vechical.
Any way I then decided to go all in changing front & rear diff and transfer case. I am now getting an avg mpg of 15.7. where I am now in Ohio it is hilly, so once I return to flat Fla I expect even more improvement. I am a clean oil fanatic, so I installed a oil bypass system. I have 2000 miles on the oil and it still looks like new. Yes bypass system and filters and oil cost a bit but the return on investment is after 25000, If you change your oil every 4-5000 Miles. The cost of Oil & filters saved, and engine wear reduction, pays for itself in no time. I keep my vechical s for a while. My suggestion is to change over to Amsoil signature series oil and 25000 mile filters. Oil is the cheapest thing you do for your vechical, do the best and I also suggest doing the bypass system. You save money in the long run while giving your vechical the best protection out there. I am Looking for a location that will use Amsoil to flush my transmission fluid. Even if I bring it in.
Hope you find this interesting and helpful.
Christian.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jason: space

Good Oil

I run this oil in my 2011 Land Rover LR4 with a 5.0L that requires synthetic oil. I've had this oil tested at the manufacturer's recommended interval of 7500 miles and there was still some life left in it. The next time I went to 9000 miles and had it tested, this time the oil was no longer good, so I'll stick with Land Rover's recommendation. This is with Land Rover's canister oil filter. Amsoil doesn't make a long life filter for it.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Oscar the oily otter: space

Heck yes

Been using AMS in all my vehicles for 15 years . Have not had any engine oil related problems yet!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by AK: space

Over 200K and going strong.

I have a Toyota Corolla I bought new in 2007. It now has over 200K miles on the odometer. It has had only Amsoil and the only thing I have had to do is normal maintenance and it still gets over 30 mpg. Amsoil is the only oil I use in all my vehicles.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by The Duke of Earl: space

Best Oil on the planet

Had my oil changed at a dealership. They showed me some black sticky that came out of the oil pan. I called AMSOIL with my story and they had me send in a sample and some of the oil that drained. They did a thorough check and found that the oil had not failed in any way, some other contaminant apparently fell in while under warranty gasket replacement. Great company that stands behind their products!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tootall Ted: space

Many miles!!

1993 Cadillac Sedan deVille. 4.9 liter aluminum block engine. 351,136 miles!! Enough said!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by John: space

Use nothing but Amsoil in my vehicles.

Use at the recommended Amsoil oil change intervals. Never had any engine problems.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tuff: space

Tuffy

Just and great oil .

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Robin: space

I would buy this product again

I run it and all my vehicles love it

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bill: space

I will be buying this product as long

2008 Lexus

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by 1968 AMX: space

AMSOIL beats everybody & More MPG

I am truly convinced that AMSOIL synthetic oil is the highest quality synthetic oil in the marketplace. I believe in my heart I get more MPG with this Signature Synthetic oil. I have been using it in all my hybrid cars for last decade or so. I love the quality, customer service and want to keep supporting this quality company. Keep up the good work AMSOIL.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Car burns less oil: space

I have switched to this exclusively

I saw a forum post with some oil test results. Amsoil was at the top of most of them. I switched to this in my 2002 Honda s2000. I'm 1 oil change in and my car hasn't blown up yet plus it burns less oil than with Mobile 1.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rookie: space

Best I've used.

Improves Gas Mileage.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by PW John: space

Best oil for a hemi

I have a 2007 Dodge power wagon with the 5.7 hemi. I work this truck hard, and this is the only oil that cures the notorious hemi tick even with 130000 plus miles and oil changes every 15000 miles. Well worth it if you love your truck.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Raptor guy: space

Love the products

A little pricey but peace of mind knowing that you have put the best you can buy into a truck that costs a bunch ! As crazy as I know this sounds I went from 13.1 mpg to 15 mpg only changed the oil . Is that even possible???

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Armymedic: space

Awesome

I have nothing but good to write about this oil. I change my oil once a year, and change the oil filter twice a year, every 6 months, however. That's based on my driving and may not be on your driving habits. I would follow what Amsoil recommends when using their oil. Other than that my mechanic comments how great my car runs, because my last car I put on 250,000 miles without a major breakdown. I highly recommend Amsoil products.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ricky: space

Oil

Excellent product. Bike runs cooler and smoother

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bam Bam: space

Needed the best protection

Just bought a 2018 Jeep Wrangler and wanted the best protection .... The same I had using Amsoil on my 1994 GMC 350k miles and 2003 GMC 230k..

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Cleve: space

Oil

I buy Amsoil because it has always worked for me. I have over 200K on my 97 Jeep, and the last 3 of my wife's vehicles went over 200K, one went to 286K before I traded it off.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by ug_boy: space

smooth as silk

run it in my wife's CRV. I don't trust the Honda oils as they sludge out when converting to AMSOIL. Thankfully this is a new car, so I won't have this issue. A clean motor is a happy motor!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JD: space

Overall happy

I am more than willing to pay a bit more than the rest to have significantly better oil protection. Read the independent reports, Amsoil is bar none the top dog.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Del: space

Owner

I've retired 2 Ford E-350 vans, gasoline engines, both with 520,000 plus miles. I'm currently driving a third one, with 524,000.
I started using Amsoil, 100% synthetic, in each of these between 50,000/60,000 miles.
I also used the recommended Amsoil oil filter.
Changed oil every 18,000, and filter every 9,000.
Over the years and miles, I've saved myself a lot of time and money with Amsoil, over conventional oil and their oil change cycle, about 6 to 1.
Also saved a lot of money in vehicle replacement cost, because of each vehicle lasting about twice as long with Amsoil, over the normal.
Yes I'm a pleased customer!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Doyce: space

Only oil I use

Change oil every 10,000 to 12,000 miles. I know it would go longer, but I know for sure my bike is ready for any demand I ask of it.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mailman: space

I would buy this product again, and I have.

I love this product. I have not had any issues with my vehicles since switching over.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Matt the car guy: space

My go to oil

Never lets me down and keeps my car running like a top. Black stone lab reports always come back good viscosity turns out little thin after 5500 miles.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Anthony: space

AMSOIL products

My 1998 Chevy 4.3 truck has 350000km right from new I have used AMSOIL products bumper to bumper and never touched the motor or transmission. Even in cold weather at -25 Celsius not plug in it will start every time.I have been using AMSOIL products for 35 years and I am not about to stop.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rick: space

I will definitely buy this product again!!

I use the 5w30 signature oil in my 2012 Chevy Sonic that I use for business. I use the car to deliver auto parts as an independent contractor. It presently has 339,000 miles on it and going strong!!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Whododgeit: space

I would buy thia product again

It good oil and keep engine running for life

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by SammyD: space

Great oil!

Amsoil makes one of the best if not THE best oil out there. You get great longevity out of their products, especially the signature series. I've been using that oil for a few years now and I noticed a slight increase in mileage and engine smoothness in my Accord. I just bought a new car and when the free oil changes(2 or 3) are up I'll be using Amsoil for sure.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Frosty mike: space

Only oil I will buy

Amsoil is the schit hands down the best in synthetics

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Subaru impreza: space

Amsoil synthetic

I have uses Amsoil for 8 years now. I go 20,000 between changes and 10,000 for a filter change in between. Never burn oil and I get constant steady power and great milage. Im convinced it the best oil on tge market...period!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by PapaDukes: space

Good stuff

I have been using Amsoil products for over 25 years, and now put it in my kids cars. Living in a place where dirt and heat are common place Amsoil has preformed above and beyond any other products I have ever used. With the cost of new vehicles I cannot think of a better product to extend the life of a vehicle. Goods stuff.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Adalarm90: space

Only oil I can review at the time

Great oil, I normally use Mobil 1 and am trying Amsoil oils. I believe they are worth it. I still think they are expensive but they seem to last. No difference in performcance(like more MPGS) but I have noticed the signature series oil lasts more time without changing color like old/worn out oil.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by FMF Doc: space

Best performance oil on the market

Used in my SC, 2014 Ford Raptor. Longer oil change interval if required. Dependability during the most demanding conditions.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Curt: space

Great product love Amsoil products!!!

So far oil seems to be holding up well,never had any issues with Amsoil products.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mark: space

I will alway use this and other Amsoil product.

Amsoil allows more time between oil changes with a filter replacement at 5000 miles.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by James: space

I would buy this product again.

Switched to using Amsoil and noticed a difference immediately at how quiet the engine sounded. I also noticed a bump in fuel mileage.

I currently have a 2007 Mazda 3s with 115,000 miles on it and used Amsoil since it was new and it has never had any oil related problems or leaks.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Acdelco: space

Good product

Use this in 2 cars & 1 truck have over 105000 miles on Pt Cruiser, engine is quiet, & doesn't burn oil.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Toyotaholic: space

I highly recommend this product.

2006 Toyota Corolla. 250k miles with only 10 oil changes. The engine still going without any issues. Now I use it on my 07 Fj cruiser and my 15 Toyota Corolla.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jeffrey: space

Great results!

I have used Sig series 5W30 for the last 100000 miles on my 2003 Lexus es.Just had valve cover gaskets replaced.Tech said engine looked like new inside with valve covers removed..

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Fernando: space

I will buy this product again

My vehicle runs great

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Manny: space

AMSOIL 0w20 and AMSOIL 5W20 synthetic motor oils.

I have been using AMSOIL Synthetic oils in my vehicles for over 10 years. Two Saturns (a 2000 SL2 & a 2002 SC2), Two Hyundai Elantras (2014 & 2017), and a GM Sonic (2015) . I have never had an oil related problem with any of the engines. There was significant affect on the LACK or wear on all of the engines I would recommend AMSOIL them to anyone who purchases a new car, or a used car with not many miles on it.

P.S. I have been buying NEW automobiles since 1970. I switched to AMSOIL synthetic motor oils in 2004, and have never used anything else in my automobiles (and my lawn mowers).

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chuck: space

Have used Amsoil products for over 30 Years.

Used Amsoil OW-20 oil in the last two Hondas I've owned and currently in my 2017 Honda Civic turbo. Aside from the fact that Honda makes a very durable Vehicle the use of Amsoil OW-20 has without question lengthened the lifespan of my vehicles. I put close to 200,000 miles on the previous Honda's I owned and expect with normal maintenance to do the same or even better with my current Honda.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Barry: space

I have been using this product for many years

Wouldn't think about any other product for my 2007 Silverado that has 223,000 miles on it. I started using it back when i purchased my first new 2000 Silverado and have used it ever since.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Timmy: space

No plans to change

I have been running Signature Series Synthetic Motor Oil in my 2010 FJ Cruiser (4.0 V-6) since it was new. The vehicle now has 146,000 miles on it. I drive 140 miles per day for work, towing a small boat for part of the commute. I consider the use of my vehicle pretty strenuous considering 1000 plus feet of elevation change, temps from 0 degrees to 105, all on horrible highways from the desert to the mountains, including a little off road crawling. I grew up around garages and race cars and do my own maintenance / oil changes and am always impressed with how good the oil looks when I drain it, even after max mileage intervals. I have had zero mechanical issues and get the same fuel mileage as when the truck was new. The one time I had a shop change my oil due to time constraints and other service, the mechanic commented the used oil looked and felt fantastic still, at 12,000 miles.
I use Amsoil products everywhere I can......tranny, differentials, transfer case. I'm sold on Signature Series Oil for all of my rigs, and sold on the people and service I get from Amsoil.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ed: space

I would buy this again

Awesome oil. Makes my Cecile run smoother and quieter. I love Amsoil.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by H20EXPLORER: space

I WOULD DEFINETLY BY THIS PRODUCT AGAIN

In my 19 year old truck with 257000 miles, the performance improvement is noticeable.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JD: space

Really wonderful oil

Started using the Signature Oils last year. I can tell the difference from regular synthetic oil. In the long run it's probably less expensive to use the Signature because of more then double the change interval.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

Good stuff

You can't beat Amsoil, and at the price when you become a preferred member, the price is as good or better than most other oils.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Josh: space

One of the best I have ever used

Amsoil products are constantly the highest quality and the best protection for all my vehicles. It has revived and made my daily driver (over 20 year old vehicle) run like a top. It is the prefect addition to any vehicle that you want to get long use out of, and regardless of the environment have the best protection for your engine.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pepe: space

Started using it......will never stop!!! Whatever I drive!!!

Always heard about it in the past, but never tried it. Finally tried it and will always use it!!!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gutsi: space

Best Oil

I've been using Amsoil in all my cars (6) for over 10 years. My 07 Honda Fit just turned 400k miles and is going strong, along with all my other cars running Amsoil. And I save money by only having to change the oil every 15k miles. Excellent product that actually saves me money in the long run.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mk: space

Love this stuff!!!

I drive 150 miles daily and amsoil helps my engine run smooth and cool.. Even when I'm due to change it feels like oil not syrup... Great price for a great product.. would buy amsoil again and again.. Thanks amsoil

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tony: space

5/50 Signature OIl

Have previously trid various oils in my 2012 Boss 302 & Amsoil 5/50 is been my choice since it came out .Great Stuff''''''

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ken: space

Signature 5-30 and 5-20 and 100:1 2 cycle oil

I installed 5-30 Sig in my Tahoe last May. Through this May I completed 10,000 miles including through a winter here in Northern Michigan. The shop I use was touting another oil and warned me that no oil could be used all winter in multiple cold or very cold start conditions and last through the whole winter. Well, I had the oil tested after a year and even in this harsh environment, the oil still had 3,000 to 5,000 miles of life left. Kudos to the product. Yes the Tahoe does use some oil--maybe 3 quarts total over that period, but it did amaze me that the oil held up and was still good after a year. Fuel economy on a road trip to Rochester, MN with a change of trans fluid to Amsoil synthetic showed an increase in mileage from about 19 to a solid 21-22 MPG. Fluids are the only change and this vehicle is otherwise a gas hog.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Short Circuit: space

Use it believe in it

I have used this product for over 20 years. I have actually torn down an engine (oil pump shaft broke) that I used this oil in close to its whole life and the internals of the engine were remarkable. They showed very little wear and tear and none of the typical deposits you would see in an engine with 135,000 miles on. I know there is a lot of churn about who's best and so on but speaking for this oil it's worth every penny. Your buying peace of mind.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jerry: space

Yes

Good product

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pgf1: space

I will be buying this product again

I have recently changed to this after considerable research,

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Lee: space

I am not going to stop using this product

Since I start using Amsoil signature zero 20 100% synthetic oil on my truck start ups Are much quicker and Engine runs more smoother and more power.My gas mileage has improved significantly

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ed: space

Great product

Start using AMS oil 10 years ago. After 250,000 miles car is still running great.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Theron: space

Reputation

Lots of confidence

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Don the mechanic: space

I would buy this product again

This Product saves money. It gives you great protection for your engine over a longer period of time, so you do not have to change it as often.When used with the Amsoil Ea Oil filter, it does even a better job. So in the long run it is more economical to use.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by ED: space

Long intervals

As I have gotten older I like how I now only have to change the oil only once a year. I take care of 6 cars (mine and my kids) so this really helps me do other things besides changing oil.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by John: space

I would buy this again

Long life offered

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Lambshark: space

The only oil I use.

Been using Amsoil for years with awesome success. I always use their oil filters as well.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Harvdog: space

We are extremely happy with Amsoil

We love the oil , filters and grease. Currently we have just over 411,000 miles on our 2004 Honda Element. Thanks for providing such a high quality lubricant.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tito: space

Excellent Product

I use this product in my vehicles that specify 0W-20. Since switching, the engines are much quieter and seem to run cooler.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

Still going strong

I've been using Amsoil Signature Series in my 2010 Toyota truck exclusively. Eight years later and 200,000 km later it still runs like new. I wouldn't think of using anything else.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Satisfied: space

Cured Generator Oil Consumption

Great for my new air-cooled Generac 11kW automatic backup generator. It was consuming another well-known brand of synthetic 5w-30EP oil at an unacceptably excessive rate. After researching the various oil properties and what others with air-cooled generators down in hurricane country use, I decided to try Amsoil 5w-50. After switching my oil consumption completely stopped. I use it or Amsoil 0W-40 in all my small engines now.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by David: space

I would buy this product again

Amazing product so good im happy i made the right Choice

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by PJ: space

I would buy this again

I started using this about a year ago and now have in my two motorcycles, my fiancés bike and a couple of friends.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by CJ: space

I will purchase again

The Amsoil Products not only protect my vehichle to the highest standards,they save me time and money.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jeff: space

Great Product and Service

We have used Amsoil products in all of our vehicles for the past 8 years. The engine in our 2010 Equinox is still running strong with 155,000 Amsoil miles. We have used the Signature Series 5W-30 for the past 75 of so and even with the high mileage we lose almost no oil between changes. We do change at about 12K to 15K though due to the heat in the summers of central Virginia.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gary B: space

I would buy this over and over again.

I use this in all for vehicles I own for the last 20 years. My V10 Motor Home, my Hemi SUV, my V-6 convertible beach cruiser and my classic convertible street rod. Extremely versatile and has never let me down.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Anson: space

Top oil, over every other on the market.

I've been using amsoil 35 years, I believe it's what gave me 450000 miles on on a 77 Porsche. Today I used it in my 18 Kia soul turbo and 16 Kia turbo koup, read the specs it's the best oil for any application.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by BATMAN: space

OIL

This is the only oil I use in all of my vehicles.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Scott: space

Amsoil is good stuff!

My engine has 245,000 miles on it, (second engine in the car) and I have used Amsoil for about 2 years. I recently had an oil analysis by Blackstone Labs, and they told me that the wear I had represented about 5,800 miles, but I had actually 22,600 miles on that oil change!! I could have run until 25,000 miles, so next time I will.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by TDR: space

Only oil period.

Use this in my 2017 Kia 3.3 and like that I save money with my longer oil change interval.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

My F150 and Highlander both run with Amsoil Signature

My vehicles never run better. I like the convenience of changing my oil once a year.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ed: space

Best oil

I have been in the automotive industry for 45 years and have seen all kinds of oil and lubricants. Many claim amazing things. My personal experience with Amsoil has been long term. First my race bike. Nothing compared to the performance of Amsoil. Runs cooler, lasts longer, overall good results. My truck now has 343000 miles. Still does not use any oil. My Harley picked up 3 miles/gallon and runs cooler.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tommy: space

Gets the job done

Great product

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tone Capone: space

Love Amsoil

Amsoil is the only well we use in our cars. Are even got my family and some of my friends to switch

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Loop: space

Long time user

Great oil

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dave: space

Great Stuff. Highly Recommended. Awesome performance

Here in Edmonton, Alberta. We've got crazy And confusing weather. The cold gets up to -50 So this Oil does Absolutely great performance. You've gotta have this in coldest weather.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Corvette Mike: space

Will continue to be a customer

Just recently changed my C6 Corvette to Amsoil. Looking for cooler operating temps and the reduction of lifter noise on cold starts. Took a 200 mile trip ran about the same temps as my previous synthetic oil. Engine seems a little quieter with cold starts. The cruising season is just getting started her in Ohio. The true test will be when I track the car at some of our clubs autocross races and high speed events. Two other friends have witnessed improvements with this product and switched based on their recommendations. They both race frequently and push their Vettes to the limit without any issues.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by juicey j: space

delivery service

seems to be working good. I put a 100,000 miles a year on. does not keep engine as clean as redline. lots of varnish from amsoil at the 100,000 mile mark. redline at a 100,000 looks just like knew inside the engine.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Larry: space

Yes

I started using this oil many years ago. When first bought it I used your oil filter and oil I put in my Ford 150 pickup truck 2002. I left in my truck for 6 weeks and drained the OIl and put in new filter and oil this cleaned the inside of my motor now the oil stays very clean. I now have over 363,000 miles on my truck still running strong

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by windom: space

again and again

Amsoil oil is amazing. You are the best.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Nosocs: space

Shmoov...

I use in a 1999 Acura CL/3.0 coupe...starteed @ 40,000, and have used for last 180,000...car has 220,000, and runs as shmooov as any vehicle out there....@ 185,000, I changed the transmission fluid, using AMSOIL transmission fluid...aGain.....shmoove shifting....Best product for any vehicle!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jake: space

I have only ever used this in my truck.

Best synthetic on the market. It's the only thing I use in my truck.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Serge: space

Great oil as always.

As always, AMSOil didn't disappoint. Ordered this for my mom's 2016 Honda Accord.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jose the big burrito: space

It's amazing oil

Super impressed with all The Amsoil products. Extebdes oil change intervals makes it a no-brainer.
vehicle
Vehicle runs so much smoother, better gas mileage, it's a win-win

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tony: space

I would buy again

Use for my car

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mel: space

I run this oil in all engines I own..

I always say that if Amsoil don't know how to make Synthetic Oil NO ONE does..
Because they have been the first since 1972..

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by rdj519: space

1999 z71 truck

300000 miles with once a year oil change. Amsol is the best

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by ...: space

...

Great products

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rusty: space

Very good product!

I use Amsoil in everything machine I own. That Amounts to one diesel pickup to three gas pic up and two mustangs one being a 2011 Shelby GT500

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dennis Oldblood: space

Best product ever for use in your car

Amsoil protect my crankshaft when my oil pump failed and I get better gas milage, epa rating for my car is 35 mpg and I repeatedly hit 40 mpg.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chris: space

Good Stuff...period

2010 Toyota sequioa w/ 200k on the clock.
Doubled oil change interval to 10k, doesn't use a drop between changes. Frequently idle and tow in hot Mississippi weather. Noticeably quieter valve operation over other top shelf synthetics. I just did a 200k service and noticed there is zero sludge in the engine. It was as sparkly as a transmission.
I expect 300-400k out of this engine but it is a Toyota not a Ford!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Los: space

Great Oil

The best oil I've ever used.! Hands down!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Poncho pete: space

5w20 signature oil

2013 Kia Rio o my has a 3.5 qt capacity. Best oil I've seen for this scenario

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tim: space

Love Amsoil

Only Oil I will every use on my high performance cars

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chance: space

I would definitely buy again.

Used for engines and trans. I researched oil products IE: Royal Purple, Mobil 1, and Amsoil. Amsoil won.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Brian: space

Yes

On thanks

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rob: space

Subaru calls for this Wt oil

My new Outback calls for 0-20 oil. This is a difficult thing to believe in considering I am old sckool and would rather have a heavier oil in the motor.
So if I am going to put thin oil in this new car, then I want the best I can get.
I been using AmsOil products for a while now and have no complaints .

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ryan: space

My new favorite oil!

My 302 race engine loves it! My old oil would barely last 1,500 miles but signature series is still golden after 5k! Thinging about swithing everything i have to it and see how a stock engine does up to 15,000!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Hawk: space

The only oil I will use.

The best oil I have ever used and I tell everyone I know.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dan the man: space

That's the one for my car

For the long mileage & city

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Joe: space

This oil is some awesome stuff.

Unlike other oils I have tried in the past this stuff seems to work very well in my 5.3 liter vortex, she runs much quieter and cooler then before, I was a big a mobile 1 user before trying the amsoil and I've been using it ever since.

If you rilly listen to you engine it will tell you what it likes, while that may sound crazy to some people to me this stuff is definitely approved by my motor lol. It is good stuff a bit pricey but you will get what you pay for with this product there's no dought kn my mind.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jim: space

Good for another year

I bought SS 5W-30 and a 15K filter for less than 4 oil changes

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by B: space

Simply the best stuff ever

Amazing products. Will not run anything else in my vehicles, atvs, snowmobiles.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by DonV: space

BillV

When changing oil in a turbo engine the new formula Amsoil Signature series is a no-brainer!!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by 392 SRT: space

Best EVER!! BAR NONE

I was introduced to AMSOIL in 1989 and ever since then it's all I use. I've had dealerships and Auto parts houses try to sell me Royal Purple and Penzoil and Mobil One and I stop them before they even get going good. And I tell them, "Sorry that you like trashy oil in your prized possessions but as for me I only run the best, and that's Amsoil. It's been around since the 60's and it's never failed. So, why not use something that stands the test of TIME!!? That's why I use it, I "Know" it won't fail."

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Oldfogey: space

using amsoil for over 20 years.

Run it in every vehicle I own and my kids. Best product on the market

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Larzman: space

AMS oil signature 10W-30

Product is terrific. Improved engine idling & gas mileage. Good engine wear too! Shooting for 300k & beyond!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by mike: space

So far so good

Time in between changes

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by H.d. Hood Jr.: space

Great stuff !!!!!! I only use amsoil

Works great lasts a long time !!!! Over priced though

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ironrail: space

I won't use any other oil

We have a 2016 Honda Pilot and a 2014 Jeep Gtand Cherokee. The Pilot gets 28 mpg and the Jeep gets 24. I truelly believe it's because of AMSOIL. When we picked up my wife's Pilot from the dealer I told her that within 30 days i'll have it running so smooth that she won't know that it's running. She gave me the bonehead look. Long story short, both vehicles run as smooth as silk and the mpg's are higher since AMSOIL. Not long ago i got into her truck and i didn't know it was running. I asked her if she was going to start the truck before we leave for our trip. That's basically how the story goes for all of our cars; lawn equipment and anything that uses oil. It's the best you can get.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Kyle: space

Yes

My vehicles definitely feels it has more performance.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jeff: space

Amsoil 5w30

Use in my Toyota Tundra since new 2006! 270,000 mi. Great protection, runs well & very consistent!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Andy: space

Excellant oil.

Use it in my 2000 Honda civic SI with 220000 miles on it. Still runs like a champ.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bill: space

Mmmmm gooo

It's the best

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Shawn and Patricia: space

Great product

Best synthetic oil in the world it's the best and only oil we use.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dale: space

Great Product

This product is awesome, since I do not put many miles on my vehicles, with getting a Demo from work, it is nice to only have to change the oil in all of my vehicles once a year and know that it comes out as clean as new when I drain it! Superior product and highly recommend!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Coulee: space

Signature Series 5w-40

Great oil, change it once a year. Been buying Amsoil since 1980, first as just a customer and then as preferred. I use only Amsoil oils, gear oils in tractor, small engines.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Clint: space

5w-30

Awesome oil! After changing the oil in my wife traverse to Amsoil everything has been running smoother. The only down side is sometimes my wife will start the car waiting for me to leave the house, I'll get in the car and try and crank it again because I cant hear the engine running it's so quiet now.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mark: space

I've been with AMSOIL since 1988

I use it in my 2 wheel drive 4Runner and have 273,000 miles on the car all with AMSOIL.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by George: space

Awesome oil

Amazing oil for the Toyota FJ. FJ ran better and oil at change interval didn't seem as dark.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Nathan: space

I buy this product every year

Have been using in my last 3 vehicles

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Imy: space

Even better than I thought

Works as designed; and extends oil changes intervals

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Imy: space

Worked as designed

Gain in mpg and more miles/time before maintenance intervals

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Maiden Youesa: space

Get the quality your $$$ deserves Amsoil

I just changed the oil in both my rides and loves the quiet smooth sound when running my signature series.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Kevhead: space

I will not consider any other synthetic than the BEST.

I started using amzoil products before being called amsoil. I use the signature series oil and Eo and Eat filters. I change my oil once/yr. And I literally do not burn any oil in that yr. With my 00' tundra V8 using amsoil. My 02

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by workamper: space

Run with this oil for 30 plus years

Nothing on the market that beats it

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rick: space

I will buy this product again and again

This is the only kind of oil that I will use in my vehicles

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Drew: space

I would buy this product and use it in every car I own

I own 2003 s2000 that I recently rebuilt the cylinder head on. Prior to the rebuild the car was turboed for a decent amount of time. The car currently sits around 112k miles at the moment after the rebuild. The car has been running Amsoil signature series for most of its life. When I inspected the camshaft, cylinder walls, etc during the rebuild the car showed absolutely no sign of wear anywhere and this is after being turboed and ran hard for a decent amount of time. I moved back to 10w30 signature series after the rebuild but still great stuff.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Shimmy: space

ONLY Amsoil!

I've taken several engines apart but only engines that have run Amsoil and they only need coolant system work. Conventional oil precipitates out garbage and sludges up engines resulting in CLOGGED oil passages. If your switching from conventional, get the best protection you can get that has tons of positive history. Do your homework/research to understand ALL the costs involved. You will determine Amsoil is the best switch you can make for your vehicles.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Railrunner: space

A Trusted Product

I have been using Amsoil products in my vehicles and motorized equipment for many years and relay on its quality. As a "gearhead", I know how important using quality motor oils and greases are to machinery. They are my first choice for lubrication fluids.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by K-Mac: space

Only the BEST Oils for my vehicles

I only use American AMSOIL in all my vehicles. For this one, I use it in my 2005 Honda Fit 1500cc..

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by K-Mac: space

Only American

I only use American AMSOIL in all my vehicles. For this one, I use it in my 2016 Nissan Caravan NV350.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jeff: space

Great product

I run Amsoil oil and filter in my Yukon Denali 15,000 miles between changes. Just reset the change oil message at 7500. Doing this for years with several GMC Yukon's. At 250,000 plus miles no oil burn at all. Very impressed with not having to go under the car twice as much.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ricky: space

Best oil you can buy

Awesome cold start protection, and anti-wear lube, simply the best

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mustang Larry: space

Buy again

So far all is good.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mustang Larry: space

I will buy this product again.

Why is it when I change my oil does my mileage drop by 2mpg. For the first 400 miles 1 1/2 to 2 mpg less then it creeps back up.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ron the Tyrolian: space

Great products

I have relied on Amsoil products for years to protect my engines and it has done exactly that.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by SamLac: space

Why change?

I started using AMSoil in the mid 80s while in Alaska. Cold extreme make lubrication very critical. At minus 40, most petroleum lubes won't even drip off the dip stick and when started cold you can hear every bearing in the engine as there is little or no lube flowing. No so with my AMSoil.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jeff: space

Not worth it.

I've been running 5W30 Signature Series in my 2002 Tacoma since putting it on the road in 2016 with 116,000 miles on the engine. I have since had Oil Analyzers (Amsoil, Inc.) test three samples from the truck so far, and have yet to have the oil last more than 13K miles before being told it's time for it to be changed. So much for the 25,000 miles/1 year claim...

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Grizz: space

This stuff is THE BEST!

I have 2 vehicles that have had this oil in them (changed every 15,000mi) since I bought them new. They both have mileage approaching 250,000, and they run like BRAND NEW. My newest vehicle is a 2017 Subie Forester Turbo so it gets Signature 5W-30 every 10,000 miles, and I'm sure it will see 200k and beyond.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by GF1563: space

Great product, well worth the money

Love the extended oil change intervals and my fuel mileage increased slightly, which leads me to believe it must be lubricating everything very well.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pat: space

This is the only oil I will put in my engine

It's great year round hot or cold

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Don: space

Will Always use Amsoil

Several years ago I switched to Amsoil in my GMC Yukon. I was very impressed with what the Signature Series 5w-30 Motor Oil looked like after the first oil change. With all the oils and products that Amsoil offers, I have since switched everything I own over to Amsoil. Even my lawnmowers.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by dhgguy: space

I can recommend this product

Used in my F150 exclusively. Excellent oil & filter.
Would not use anything else.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ronv: space

Great product!

I have used Amsoil for 30 years and wouldn't think of using any other oil.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mister nice: space

Yes

Love that you don't have to change oil as offer as regular oil. Is is a little high. Hey but you get what you pay for.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Henry: space

Good stuff

I use Amsoil exclusively

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jblev77: space

The best synthetic oil

#1 for 3.5L ecoboost

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ed: space

This is the only oil I run in my Silverado Cobalt, and GTO

I like being about to change oil at any time between 5-10k and not have to worry about weather or not the oil is doing it job !!!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by RebelnOhio: space

Amsoil always works!

I have been using Amsoil for over 15 years and have never had a problem, it's a well proven product that I trust in all of my cars for work and for pleasure. I will will continue to use Amsoil and benefit from it's proven results! I own a Livery/Limo Service and I drive about 40-50K miles a year on various cars and I believe Amsoil is the best Oil for all of my vehicles. With the long 15k Mile change intervals it is a money saving gem and your engine benefits 100%. I recommend there products highly!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by KENT: space

SIGNATURE SERIES SYNTHETIC MOTOR OIL

I've used this brand and series in my Dodge Ram 4.7 v-8 since I acquired it at 90,000 miles. I've driven another 70,000 miles since and the engine is stronger than it's ever been! I expect to drive this truck until at least 300K miles because of the Amsoil Signagture Series Synthetic brand motor oil. I won't use anything else!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by KK: space

Great Stuff

I use Amsoil on my SUV and love it!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tom: space

Great Oil

I use ansoil on all of my trucks, motorcycles, ATVs. This oil I use on 2017 Hemi 2500. It cannot be beat.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by G: space

I love it

Instant satisfaction, after the first start up i could already hear and feel things running smoother.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Redtundra8: space

Great Oil

This is the best oil money can buy in my opinion. I use this in all my vehicles and have for the last 12 years. Love only having to change the oil once a year. I highly recommend this product.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pat: space

Best line out there

Bestboil products on the market by far. I run it in all my vehicles

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Billy G: space

No issues

I have used Amsoil products for many years in all of my vehicles and small engines. I have never had an issues. I recommend Amsoil even though it is not the cheapest but the delivery is very prompt.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Wingsprnt: space

Does what it promises.

Not sure about the oW-20 weight here in Florida, but that is what Honda calls for.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Greg: space

Good product

Always met my expectations.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by MatsB: space

Excellent products.

Using Amsoil in all of my family's cars. Using Signature series in cars that drive over 12,000 miles per year, and XL series in cars that drive less than 12,000 miles.
Sent a 27,000 mile sample for testing to a independent lab, and they recommended 30,000 miles next time based on the excellent results.
Also using Amsoil in all lawn equipment and for a standby generator.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Robert Long: space

I would definitely buy this product again

Great product gives better fuel mileage and cleaner oil after changes

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tim: space

The Best There Is

I've been using Amsoil since the 1980s in everything with an engine. And have bragged about it's benefits to anyone who'd listen.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rob: space

Increase mileage

I get better mileage with Amsoil
I run my 4x4 very hard and Amsoil is doing a great job of keeping it running strong

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Elvis of Aragorn: space

Great results

My 2004 Silverado (5.3L V8) has had a steady diet of Amsoil since its second oil change. I have stuck to the 10,000 mile interval, using Amsoil Ea filters & Signature Oil. She's about to roll over the 200,000 mile mark, and I have had no engine issues. I use Amsoil Signature Synthetic Oil in all of my vehicles, and plan on keeping it that way.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pinto: space

great in the city

I'm city driving in a 4x4 Ford van and after my last oil change the oil was still in great condition after 15,000 miles. just used the cleaning solution so lets see how this improves engine longevity. really happy with all th products I have received.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by S2kadi: space

The Only Oil I Trust

I use Amsoil Signature Series in both of my cars that are susceptible to burning oil. The 10W30 goes into my Honda S2000 and works great! Amsoil is the only oil I use in my motors and gearboxes, after trying out several different brands, I have found their quality to be of the best.

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by pro4100: space

Top Notch

I use it in my Subie Forester and my silverado 1500. no problems ever!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Quick charge water: space

Best stuff on the market

Yeah like to 25,000 my old changed

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Beast: space

10K Oil Changes

I will never use conventional again. 10K mile Oil changes, or once a year. You cant beat the quality and value of this product. No dealer or mechanic can ever persuade my to change every 3k miles again!. Get you some!

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ber: space

I always use only Amsoil

Better mpg and engine protection

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by ScoobyVTEC: space

Improved MPG

Bought Amsoil for all of my cars so I wouldn't have to change the oil so frequently and for the protection it gives all of the internal moving parts. I've noticed an increase in MPG and smoothness when I drive.
2017 Civic Type R
2012 Pilot Touring AWD
1998 Civic EX

Item Reviewed: Signature Series Motor Oils

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mark: space

Best product

Started using in my 08 Subaru saw better gas milage the car ran smoother so I began to change ever gas engines l own to amsoil. Couldn't ask for a better product !!!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jim 38: space

The best money can buy

I've used amsoll since probably 1990 in my mowers my pickups my tractors. I swear by the signature series it's done wonders for me and Increased gas mileage you have to try it for yourself to see the picture

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by BC: space

Oil of choice for my rotary.

I've been running this oil in my Mazda for a few years now and even after a full oil change interval and heat a rotary produces it still looks very clean

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Adam A: space

Never switching back to motorcraft now.

I have started to use this product on my 99 town car a few months ago and I have already seen a difference in just how to engine stays cooler and is able to drive a lot smoother. I would definitely recommend this to anyone wanting a better lubricant for their engine and to have better performance out of anything they have.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Carp: space

No competition

Other oils just wouldn't hold up. Would burn off and be black by 1,000 miles. I have work trucks, daily drivers, and toys. Work as a technician and never seen oil drain clean after a normal service. Except Amsoil after 10k looks good as new.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mackjash: space

Only oil I use!

Amsoil have provided my street and race motorcycles with excellent protection. Recently tore down my old race bike which has 30,000 miles on it of which 7000 are track use. Measuring all major parts and the engine shows no wear, factory cross hatch is highly visible in the cylinders. Great product!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by jmcamp: space

The only products...

I use all Amsoil products in all my vehicles and yard equipment. I even have them change it on my Volvo XC60 that is under warranty, where they recommend and use another product. I always tell them to use the Amsoil oil I bring instead.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Trigger: space

Best oil I've tested to date!

AMS Oil's Signature Series oil has been the best oil I've tried so far. It has been cleaner from oil change to oil change compared to synthetic oils from NAPA, Valvoline, Royal Purple, Mobile One, and Castrol, and I've seen fewer metal shavings comparatively to many of the aforementioned oils. Royal Purple was the only comparable oil heat wise but it's generally dirtier between changes and more expensive.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mac: space

230k miles - and still like new

I have a 1998 Chevy Suburban with 230k miles. Its whole life has been 100% Signature AmsOil. The motor still has 155-160 compression in all cylinders. It still gets "like new" gas mileage. It still pulls trailers like they aren't there. Simply impressive.

Oil changes every 10k miles (since I pull trailers). Compared to conventional oil every 5k, it is breakeven in total cost - (after discount from AmsOil). PLUS - I only change the oil 3x per year instead of 6x. In fact, I love the fact I can change oil in fall and not again until spring. Skip right through winter.

AmsOil products are worth every penny.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by trey512001: space

signature series

great product and now a longer interval change at a fair price. what else could you want !

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Andy: space

Good stuff

I put this in my 1996 Chevy K1500 with a 5.7. Slight tapping on startup disappeared, and i gained about half a mile per gallon. Not bad for a motor with 200k on it. Always happy with all Amsoil products, it's all I run.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Anthony: space

Love my amsoil

Simply the best bang for the buck. I have oil analysis to back it up.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Carb: space

Awesome!

Hands down the best oil on the market! Will never go back to the other stuff.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Postman: space

👍

Use it in all my vehicles. I beleive ya the only way to go

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Postman: space

Use it in all my vehicles. I beleive ya the only way to go

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by TAK: space

I recommend this product

Been using Amsoil for 20 years and never had any engine problems.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by TNMrK: space

Great product

I have used this oil in both my personal vehicles 2012 Silverado and 2011 BMW and they run super smooth with this oil. I will not run anything else. When I work on a customer engine I put Amsoil in and recommend it for life.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gordy: space

Best Synthetic oil around

I always use Amsoil in my vehicles and have had outstanding performance from it

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jagger: space

Happy with purchase

I can only speak honestly and being that I just acquired the vehicle I changed the oil and transmission fluid recently to Amsoil. Both products seem fine but I cannot really say that they made any noticeable improvement in mileage or smoothness or anything else however I'm hoping they do provide the protection I'm looking for and continue to keep my vehicle running great for many years to come.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Railroder: space

I buy this oil and would refer it anyone.

I started using aimsoil in my car a year or so after I bought it. I drive a lot, 400,000 + miles on my car at this time and still going! Know I use aimsoil in my tractor also.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by GreatOil: space

Offers Great Protections

Only oil I have used in over 45 years of changing oil, That after 18000 miles still has plenty of protection left in the oil. Got to use a good quality filter as well, but this oil is awesome

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Fast1LE: space

This is all I use because it's the best

Pay a little more and get a whole lot. I use Amsoil in my transmission, rear diff and engine. World of difference. I track my car as well and believe me I'm hard on my driveline. Gears, transmission and engine perform at optimum levels with Amsoil and you are protected. If it's used in racecars it's for a reason.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Kyle: space

Buying again

Great product, buying again.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Canonball: space

It's my new standard go-to oil

This oil has made a noticeable difference in my hemi. It's made the engine quieter and given me better overall gas mileage. You can't go wrong with the right oil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Erik: space

Great Products!

I run amsoil in every motorized vehicle I own...very happy with all products

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dan: space

Best Premium oil on market

I started using Amsoil several years ago in my 2-stroke YZ125 and was very impressed. Back then I was rather unfamiliar with Amsoil so I started doing some research on Amsoil and other competitor brands, because I only wanted to run the best lubricants in my equipment. What my research uncovered for me is what I now believe to be so great about Amsoil. Amsoil provides plenty of literature from third-party testing that truly separates their products from the rest of the field. Other brands will only tell you what they want you to hear, but what is great about these testings is that we as customers can see for ourselves side-by-side test results, and the results speak for themselves. In these tests Amsoil's products are put through the ultimate rigors and unbelievably harsh conditions and STILL protect against breakdown and wear. The one thing about Amsoil is you won't see expensive ads on TV about what the company's oil "can or will do" for your engine like the "Big brands",however, with Amsoil you can read for yourself from unbiased third-party test results that PROVE Amsoil's greatness over competitor brands. As you can tell I am absolutely sold on Amsoil now days and run it in all of my vehicles even my lawnmower and snowblower. With harsh MN winters I need the best oil to protect with cold start ups. I would encourage everyone individual who is new to Amsoil, or even a long time user, to take a look at some of the testing that has been done on their products. Read the results! If you're still not sold on Amsoil I'm not sure what else to tell you.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Andy-Boy: space

Only oil in my goat

Long oil life, keeps me going longer without having to do oil changes, engine sounds " heathy " less valve noice.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Doug: space

Late Model Cars in Tropical Heat

Love all the Amsoil products. They've kept my 10-20 yr old engines clean and functional in severe heat.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by None: space

Nothing but Amsoil

I've been using Amsoil in my vehicles for over 10 years now and in my opinion it is the best and less expensive in the long run. Less oil changes, less maintenance and better gas mileage. Over 280,000 miles on my 2004 truck and does not use a drop of oil between changes. Would like to see more in and out oil change businesses carry Amsoil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Desertrunner: space

Great stuff

This stuff is well worth it. Noticed the first oil change that my truck runs smoother and quieter(Toyota tick). Waiting to see the oil analysis when it's time.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Scott: space

AMSOIL

Been using AMSOIL products now for approx 15 years. I use it in all my vehicles. I use change my oil every 10,000 miles with Amsoil filter. Never had an issue with Amsoil. Highly recommended,

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Perk: space

100% sold on the value of this product

When you buy something you expect it to do the job it was made for. AMSOIL does that for me. I became an Amsoil fan around 2001 when my Chevy pickup was first sold to a farmer here in Pittsburg. I was living in Alabama at the time and I had put AMSOIL in both my vehicles and was very pleased with the performance improvements i.e. mileage, performance, etc.
We moved to Texas and my wife said I needed a pickup. Every Texan man needs a pickup, so we bought a 2001Chevy Silverado with 99,000 miles on it. It ran like a new truck. I immediately put AMSOIL in it and now with 132,000 miles on it it still runs like a new truck. I haven't had to do any maintenance on it other than maintaining fluids, tires, wiper blades and the like. And i expect it to continue performing like that as long as I have the vehicle. I will never use any product other than AMSOIL lubricants in my vehicles. I also use them in my Toro Zero turn riding mower.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Full out: space

Very tough oil

I have been running amsoil For over a year now. Naturally aspirated v6 in a 2011 Ford Explorer and TwinTurbo V6 ford F150.
We know how turbo charged engines can generate heat and breakdown oils much quicker
I really like the extended drain intervals and even with almost 13,000 miles on my F150 the oil that came out was still very thick. probably could've gone several thousand miles more.
Usually with that kind of mileage and that kind of abuse oil comes out the consistency of water.

I'm not easy on my vehicles either And tow from time to time.

I just purchased oil, transmission oil, and filter for my Honda TRX 450 Atv.

You have a customer for life!!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bam Bam: space

I will buy this again

This company is #1 for oil and have a lot more products the oils I use work well I have taken motors apart in past and they are clean and no damage good products

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bman: space

Anything

I run everything amsoil even snowblower I own a boat a Jeep Wrangler Chevy Silverado rmz450 dirt bike a hayabusa and other small engine equipment all motors run perfect nothing better enough said!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Shane: space

Won't use anything but...

Ever since being introduced to Amsoil, it's all I use. I've put it toe-to-toe with friends using other brands of oil, and they've eventually seen the light and moved over to using Amsoil as well. Never disappoints.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ant: space

5w-30

The only reason I'm not giving it 5 stars is because I have a 2002 Nissan pathfinder with 240,000 miles leaks a lil oil but with Amsoil 5w-30 signature series and when I use it it leaks even more...think about your high mileage customer. I aslo have a Infiniti QX56 2008 with 132,000 with 5zw-30 signature Series no leaks at all and just did the transmission fluid ATF, transfer case and front a rear diff with the server gear fluid and shifts are so smooth rides like a dream 5 stars on that! But for my 02 Pathfinder had to switch back to a conventional high mileage oil with seal conditioner.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Josh: space

I buy this product

I put it in my vehicles and change it when needed

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by StorminNorman: space

Only oil to use

Amsoil is Great. I've used it for 20 years. It's in everything I own. Why would you use any other oil?

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by ME: space

Repeat User

I buy this product once a year along with the oil filter. I have a car that is 16 years old and it runs great. Have always used this oil and filters.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rob: space

I have used this oil for 17 years

I use this oil in all my vehicles. It works day in and day out

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Little George: space

Its works

When you have some get in the truck & ask why it runs so well it opens the door

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ryan: space

I would buy this again!

Works great! Have used it in every machine I own for the last 13 years. I have Never once have had an engine issue on any vehicle I own since switching to Amsoil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jbush0202: space

I will buy always

Works better don't burn as fast in my truck that eat gas and oil as snacks

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Zen: space

Tried, Tested, and True

I do my oil changes annually and find that my vehicle runs smooth all year long. I've used other synthetics and have found from my experience that my car responds best to amsoil especially as I approach 20000km mark at the end of the year.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Faisal: space

I would but this product again.

Awesome product. Use it on both my car's.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by John: space

Peace of mind

The peace of mind knowing the best oil I can get is in the motor is worth it.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dejohn98: space

Signature Series EcoBoost

I feel a lot safer taking it to redline knowing that I've got good protection in those turbochargers I'll never use anything else

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by STP: space

Great Products!

I first tried this in my personal daily driver and liked it so much I'm now running this oil in three cars. Also running the racing oil, transmission fluid and gear oil in my race car!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Medic Mike: space

Great Oil

I have used AmsOil oil since 2006 i trucks, performance cars and SUV's. I love the extended drain intervals with AmsOil oil filters. When I replaced an oil pan gasket the shop was surprised how clean the oil pan was with 100,000+ miles on a 2003 Escape. Be advised when I switched to AmsOil in the 2003 Escape it had 80,000 miles on it and I used the AmsOil flush as well before first fill with AmsOil. The combination of Also oil and gear lubricants kept the 2003 Escape getting the sticker MPG new or better. I have so used this with a 2007 350Z and a 2006 Dodge 1500 5.7 Hemi with bypass filter set up.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jayme: space

Best Oil Period !!

I've been using Amsoil for over 15 years and Hands down its the best
I use Amsoils in everything that requires oil
It's works !!!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dennis the driver: space

I will continue to put this great oil in my cars

Amsoil has saved an engine when lost oil pressure and had to continue driving 200 miles. had to replace bearings but crank shaft was not damaged. I have increased gas milage.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by John: space

Long time user

Superior products used in all my vehicles

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by LH: space

Excellent

All products that I've used from AMSOIL are excellent! I would not use anything else!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JR: space

Used oil & filters in my 2002 Tundra since new. Have 175000+

Excellent product. Miles 175000+ change oil & filter once a YEAR

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by SuperSuzy: space

Best motor oil you can buy.

I've been a faithful customer and user of Amsoil products for almost 10 years now.

I can say with out any doubt that it has been the single best product I have ever used in my automobile.

My 2002 Suzuki XL-7 has been running on Signature Series 5W30 for 9 years straight and my motor feels like is hasn't lost a shred of power.

As an automobile owner who takes absolute meticulous care of his machine, there is simply no substitute for Amsoil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JR: space

Used oil & filters in my 2002 Tundra since new. Have 175000+

Excellent product. Miles 175000+ change oil & filter once a YEAR

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Heartbeat of America Bob: space

Regular user

I use Signature Series 5W-30 in my 2002 Z-28 and my wife's 2002 Cadillac. Meets or exceeds MFG recommendations and has great detergent add packs. Cadillac has 120K miles and no oil related problems.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dipfedcamaro: space

Great product

I will be using this oil for the rest of my car is life

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by mpsmta: space

buy again

in personal vehicle

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Fast lane: space

Amsoil Signature Series 5w30

Best Synthetic made!! I use it for 20k in my wife's Subaru. Barely changes color!! Everyone should use this! One oil change a year!!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Phil: space

Personal test

I switched to Amsoil for my 2017 Escape to see if Amsoils' reputation for quality stands the test of time. I suspect it won't let me down.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Freedom Road: space

Best synthetic out there.

Great protection, flows great in the cold weather. Nice to change the oil and the filter once a year. Saves time and money not having to change oil and filter several times a year. When draining the oil, the viscosity is the same as it was when it went in.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Thundercat: space

Excellent performance oil

Use this oil in my 1993 Corvette. Slightly modified. Have been using this oil since 2010 with no issues, car runs excellent. I believe this product saved my engine when a power wire disconnected from my electric water pump. Engine temp got to 245F (glycol temp) before I shut down the engine. Surely the crank was much warmer than that. Oil was slightly discoloured. Changed oil as precaution but no damage to engine. Just over 126000 miles on engine.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Old school: space

I will continue to use this product in my vehicles

I get great results and extended oil life as well as improved fuel mileage with this oil

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Storming Norman: space

This is the only oil I use.

I have Amsoil in everything I own. I've used it for over 20 years. Why would anyone not use Amsoil? I use it in cars,trucks,diesel trucks,motorcycles,lawn mowers and all my hand held lawn equipment. It's the Best protection money can buy for your lubrication needs. I've convinced many of my friends over the years to switch to Amsoil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by James: space

Signature Series 5W-30 Synthetic Motor Oil

I have been using this oil and the recommended filter in my last 4 vehicles. I have changed the oil & filter at 25,000 miles or 1 yr. I have kept the vehicles for at least 200,000 miles and have not had any oil related problems. I drive about 28,000 miles per year.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by curt: space

all i use

7 k on my last change 15% remained ....only oil for my gmc pickup.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by David: space

Engine Maintence

wouldn't use any other brand of oil, saves gas, increases oil pressure,with a longer engine life.
Thank You Amsoil

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dean: space

Absolutely

I drive 200/300 miles per day,
Before amsoil I was changing oil every two weeks.now twice a year,
That's awesome,
My last 3 cars have had 200k to 340k.
Not a single oil related issue!
Thanks

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tim: space

Bettendorf Iowa

I'm impressed

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Big John: space

Awesome

I've been using Amsoil in all my engines. Am certified ASE Technician. I love the 25k oil and filter. Only have to change my oil once a year. I am money ahead for several reasons 1) cost. 2) time. 3) my engine and seals are in better condition with Amsoil. The molucules are consistent size and fit into tight tolerances.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mecha-Nick: space

Oil for any engine

Great oil. Used in all of my vehicles. Long drain intervals. Will continue to use!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ted: space

Works fine in wy 1997 a Avelon 185000 miles

Only change once a year

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by V2: space

Best in the industry

High mile toyota vehicles oil and amsoil filters

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by jake: space

less maintenance

20,000 miles on an oil change will get me through for a year so I only have to change my oil once a year. It pays for itself and its less maintenance I have to worry about doing.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bob: space

Oil

I'v used this oil for over 25 years.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ron: space

I will buy again

Its what I need. And I will be buying more for the other vehicles

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chris: space

Good Stuff

My dad has used AmsOil for close to 40 years. I just switched about 6 Months ago. I use it in all of my vehicles including my Work van that i use to pull a 5000lb trailer and is on the road all the time, stop and go!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by BUCK: space

MY MECHANIC USES THE SAME OIL IN HIS VEHICLES.

WE ONLY PUT ABOUT 6K MILES A YEAR ON OUR VEHICLES SO AN ANNUAL OIL CHANGE WORKS FINE AND SAVES LABOR. I HAVE A BYPASS FILTER SETUP (BP90) ON MY TRUCK SO NO WORRIES THERE, UP TO 248K IF MEMORY SERVES.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jay: space

Highly recommend

Save me money and gives me peace of mind

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by W. Slater: space

Run in everything

We have cars, trucks, tractors, snowmobiles, atv's, and a Harley,, all have AMSOIL in them and we've never had engine failure. Expensive up front but oil changes are farther apart and you have premium quality product running through the machine and when you look at the long range you have top of the line for the same price as the budget brand yet so much more protection

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by joe: space

i would buy this product again

This oil and filter and the flush make my high mileage escalade run. It also makes the engine run faster and smoother and it has increased my mileage slightly

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by BJ: space

530 Signature series

I use signature series 5W-30 to change my truck's oil

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by siderwhite: space

Great product although expensive

I use this product for my high mileage Toyota 4Runner and FJ Cruiser to keep them going forever, especially since I'll be retiring soon and won't be able to afford a new car. I change the oil at least every 5,000 miles to keep the engine clean and running strong.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mongo72: space

Been using Signature Series for 15 years

Just purchased a used truck,tracked the first tank of fuel at 11.4 ,changed all fluids,motor and trans to amsoil . Next reading on fuel came to 15.4 ,significant increase and which tells me that the amoil does what it claims. Will be changing the rear end fluids tomorrow. Stay posted

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chris: space

Great oil

I use in both of my cars that have a gas engine. The oil stays clean for a long time.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by dday: space

i would buy this product again

this product has held up to its promise to stand duable to all temps

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Craig: space

10 years strong.

I use in all my vehicles and small engines. 1 year, 25,000 miles or 700 hours. Great product.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bigred: space

Structural repair

This my first time using the oils, and I like it...I would go back to conventional oil.. Thanks AMSOL...

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Len: space

Great product

Always use Amsoil. Best thing or any motor.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chuck: space

I been using Amsoil since 1995

Amsoil is the longest best wear protection money can buy. I use it in every machine I own. It has been a product that has never let me down. Thanks Amsoil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by James: space

Only oil I will ever use!

This is used in a 2012 STi. Engine seems to like it.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jason G: space

Great product! Would never use any other

Use this product in my 2007 G35 Coupe and can say that i definitely can tell a difference in performance.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JZ: space

Amazing Amsoil

310,000 miles on a Dodge Grand Caravan V6 engine. This is all I need to say, except my previous vehicle was a Geo Metro with 210,000 miles on it. This stuff works.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Brent: space

I have bought this product over and over.

It is a great product, can do 15,000 oil changes (turbo) with 15,000 filter with superior protection at a cost less than a regular oil change. Can't beat that!!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by SGR: space

Yes

Number one in protection and performance.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dale: space

Great Product

Last longer then average oil

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bern: space

Would always use this product

To keep all mine and my family cars and truck and motorcycles running at there best

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JD Deer Slayer: space

Oil that is truly black gold!

I drive a personal vehicle for my job, averaging about 60K miles per year. I started using Amsoil Signature Series over 20 years ago at a friend's suggestion. As soon as I bought the new vehicle, I would drain the existing oil, flush the engine and replace it with Amsoil. EVERY vehicle I have owned since I switched to Amsoil has never had a day of engine trouble, had better gas mileage than predicted, started in the cold Chicago winters like it was summer and blew past 250K miles still purring. I've even had one car manufacturer ask to buy back the engine from me when I was done with the vehicle. I won't put anything but Amsoil in my vehicles. It's just that simple.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Steve: space

Awesomeness

Great pill always looks good after extended drain intervals!!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bobby: space

Great Product

I run Amsoil in all our company fleet vehicles, my personal vehicles and all my race bikes. Our one panel van hit 600,000 km and still runs awesome doesn't burn oil and still shifts perfectly, I trust Amsoil for everything.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Northern racer: space

Great product

I've been using Amsoil for over 30 years. Love it !! I get improved MPG in all the vehicles I use it in . Great stuff , I do six thousand miles between changing. Off sets the price difference.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by hikerman124: space

Great Motor Oil

I've been using this Signature Series 5w-30 for the 12 years know in the same 1997 Toyota Tacoma 4x4 and it's never ran better. The motor is still like new with 397000 km on it. I do one oil change per year and that it. I'm a probably a slightly more aggressive driver compared to most and this oil is far superior to just about anything that I've come across. I defiantly put it through its paces and its never let me down. I hate to admit this but I even got in an accident once and went to exchange drivers information with the other guy with my truck running and noticed my antifreeze had all drained out from the accident. When I tried to get back into my truck my door wouldn't open even though it was unlocked. For over a half an hour my truck was running with no coolant and no way to shut off my truck. I kept an eye on the temperature gauge the whole time I was trying to get into my truck and the temperature remained in the normal operating temperature the entire time! I thought for sure it was going to cook the engine and I was ready to smash the window open if I seen the engine temperature rising. I finally gained access inside my truck and even drove it home {about 10 km} still without any coolant and the temperature never ever did go up! I give full credit to Amsoil for saving my engine and making a motor oil like no other! That was all about 200,000 km ago.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Diego: space

Great oil, great products overall!

I've used Amsoil products in my vehicles for many years now. Oil, EA oil filters, EA air filters, Propylene glycol coolant, and several other Amsoil products.
2004 Scion = 200,000+ miles ( purchased new )
2006 Toyota Tacoma = 231,000 miles ( purchased new )
2015 F-150 = 40,000 miles ( purchased new )
None of these vehicles uses oil, or overheats, all are still going strong.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Honda450: space

I would buy this product again

This particular product went in my chevy silverado.Works very well everything you want from your oil only downside is price but you want the best you pay for the best

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Footloose: space

I have faith in Amsoil products

I have never used the 5W-30 product before, but the vehicle I'm replacing (a 2004 Hyundai with 220,000 miles) never had anything except Signature Series 10W-30. When 'Sam' got totaled, I had NEVER had to add a quart of oil between changes.
Everything I own that has a motor has Amsoil in it.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Kody: space

Perfect product for my HD pickup

Amsoil saves me money by providing a product that is guaranteed for 1 year so I only need to do one oil change instead of multiple every year. I use it in everything from my 3500HD pickup to my snowblower and they have provided me with flawless results and I know my engine is being protected for the entire year

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Moldy: space

Good oil

It's good oil. Expensive but good. Looks clean after I change it. Can't complain

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Kody: space

Perfect product for my HD pickup

Amsoil saves me money by providing a product that is guaranteed for 1 year so I only need to do one oil change instead of multiple every year. I use it in everything from my 3500HD pickup to my snowblower and they have provided me with flawless results and I know my engine is being protected for the entire year

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Fred: space

Best Available

Continuing to use this oil in our 2004 Prius with over 220,000 mi. with no leakage or burning oil between annual oil changes. I've used Amsoil for over 20 years in all kinds of applications always with excellent results.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Big D.: space

Yes I would buy this again.

I have used this oil before, and I'm glad I'm using it again. This oil helps my engine run better, I'm pleased with this oil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Trevor: space

I use this in all my vehicles, and my kids do also

I have used this for several years in all my vehicles. I think it provides the best protection against wear in the engine. Plus in the long run I think it is economical to use, change once a year or 25,000 miles.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by The kid: space

Great product

I am very busy with family , work and play.. so to use this product makes my life a little bit simpler ., I put it in all my vehicles ..so I only have to worry about the oil once a year .. and the protection it gives is also peace of mind .. excellent product. Thank you amsoil .

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by The Goat: space

5w30 diesel oil and engine flush

The engine flush is amazing! I just picked up another gen 1 cummins that has had cheap oil it's whole life....flushed with Amsoil engine flush and wha came out was amazing.....dirty sticky Nast oil clobs....then added the Amsoil 5w30 and installed the oil bypass filter as well and my oil is as clean as it looked when I dumped it in two weeks ago......great products......well pleased.....pricey but very worth it.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Scruffy: space

Works wonderfully

Only use Amsoil in all my engines

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Brian: space

Best Lubrication!

I have a 2000 Honda CR-V with 240,000 miles on it. The first 40K was conventional oil, then I switched to Amsoil full synthetic. At 240K, it does not use any oil between its annual oil change.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Steve: space

I will continue using this product.

I have been using Amsoil products for several years. It is something that you cannot see working but the high milage I have attained on several vehicles while using your product is proof to me that it is good. A few mechanics that I trust have advised me over the years as to what a great product Amsoil is and based on their recommendation and my own knowledge I wouldn't use anything else in my vehicles. Keep up the good work your founding Father started and continued testing / improvement and ease of ordering is always appreciated.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Horseman: space

Using AMSOIL since 2005

Been exclusively using AMSOIL products in my vehicles since 2005. All three of my gas vehicles continue to run smooth and burn little or no oil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by George: space

I would buy this product again

Love it

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

Only use amsoil

Switched to amsoil 10 years ago and never going back. Car and truck always run smoother after changes. When I broke a valve spring the mechanic said the inside of the engine was immaculate. And that's with 158,000 miles on it.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by BKT: space

Great Products

I have used the 5W-30 in my F-150 Eco boost since new in 2013. I just hit 100K miles and it runs great, I use it for every day driving and towing a 30 ft. Travel Trailer

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jonesy: space

Why would anyone use any other?

Best oil available anywhere. I am sure it is the reason my 2005 Chevy Avalanche is still going strong with well over 200,000 miles on it!!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Scott: space

Best their is!

I used the signature 5w30 in all my cars and trucks. Never a problem. Again...BEST OIL PERIOD!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by DeliveryCourier: space

Awsome Oil !!

Been using this product for more than 3yrs with 25,000 miles oil changes. My Van runs the same as the day I bought it @ 29,000 miles now nearing 248,000 miles.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Torpex: space

Great Product

Bought used 98 Cavalier, changed oil & filter to Amsoil after 3 tanks & ample road tests. Smoother running, increased power and economy. Car pulls hills better, idles better, and shifts smoother.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gary Kelly: space

Been using for years

Use in everything I OWN

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jeff: space

Good oil

I been running Amsoil for years

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Nick: space

Best on the market

AMSOIL, the best thing that ever happened to my automobiles! I have used AMSOIL for decades and would not change to a different brand even if it came free...

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Desert Dweller: space

I'll continue to buy this product

I've been using Signature Series 5W-30 Synthetic Motor Oil since I purchased my 07 Silverado back in 06. I change my oil once a year and have had no problems at all. My truck now has 196K+ miles and only recently I've had to add about a half quart after 6 months. I think I'll start changing the oil twice a year from now on. My truck deserves it. Amsoil synthetic oils are the best!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Shane: space

I would buy it again I have!!!

It dose what it's suppose to do.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tim1457: space

I wouldn't use anything else.

I started using this product in 2011 after talking to an Amsoil dealer at work. He was so confident about the product, I decided to give it a try. I was impressed by the mileage guarantee but mostly how my truck still runs smooth and clean. I have since used the transmission fluid after a flush and fill on my tundra. It shifted so much smoother. Try Amsoil,byou won't regret it. I also use Amsoil in my Honda atv.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by KLB: space

Used in my truck for about 10 yrs

Very happy with the quality of this oil. Almost no oil use even though my truck has over 160,000 miles

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by GBDP3: space

Great product

Use all the time,have use for years only oil I use for my cars.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by J.W: space

Best oil ever

On all my vehicle's, and all my friends and customers. Thank you for it.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by J.W: space

Best oil ever

On all my vehicle's, and all my friends and customers. Thank you for it.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gabe: space

I will buy this again

I drive 30,000 miles a year. This saves me a bunch of money on oil changes. Car starts just as easy in winter as it does in the summer.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mac: space

I will never use another oil brand again.

My wife's traverse has only 50,000 miles. I noticed I had to add about a quart of oil between oil changes. I was using Valvoline 5-30 synthetic. After switching to Amsoil I have 8000 miles on this change with no oil consumption. Speaks volumes to me.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by MEL: space

I BUY THIS FOR MY CARS AND TRUCKS

2018 FORD RAPTOR AND A CAD.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bandido: space

It works!!

I have an 08 Harley Heritage Softail twin cam with over 52,000 miles on it. One of tbe biggest issues with these motors are the cam chain tensioner, which wear out and can cause catastrophic engine failure. I opened her up at 50,000 and the tensioners look brand new!! Also run Amsoil in my 99 silverado 4×4 throughout ,engine ,trans,transfer case and both differentials this one just turned over 200,000

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Timbo: space

I will always run my vehicles with Amsoil

I have had really great luck and experience in my trucks and cars with Amsoil, they run better have better gas milage and performance, as well as lasting a heck of a lot longer, almost 300,000 miles on my last truck. And the price of the new trucks now a days WOW, so it's Amsoil for this family!!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Anson: space

Excellent products

I used to drive a Porsche and the shifting was sticking. i replaced the gear oil with amsoil and it shifted like cutting thru butter.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Kevin: space

SS 5W-30 Oil

I drive 100 miles a day to and from work in a 2011 Chevy Cruze ECO 6sp manual and run Amsoil SS 5W-30 and Wix filters, I have sent this oil off for samples and can safely run 18K intervals with a filter change half way between. This oil is wonderful for the engine and turbo.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

Reviewed by Azhar Ali : space

Used it to believe it

Opel Insignia 2L Turbo - Petrol
Switching from GM engine oil to Amsoil Signature Series.
What could say this product is beyond my expectation.
Totally can feel the different.
Better engine respond 100 percent.
Cutting down engine noisy
better fuel economy

I should knew this product earlier and no longer back to
to GM oil which is more exp here and no able to match the performance.

Thanks Amsoil

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)
Discussion Url

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Hallbomb: space

Love it

This is a great oil. It runs amazing in mu 2008 WRX. Wouldn't use anything else in it.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Wayne: space

I will use it again

Run in my mowers great product

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jake: space

I keep on buying this product year after year

Works great

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by FifthPinned778: space

Great Lube

This product is just what I was looking for. I didn't think a different brand would make such a difference but Amsoil has definitely hit the the nail on the head with this formula. I run this in my 2006 Subaru WRX Limited and it out-performs Mobil1 and Royal Purple by miles! My rod bearings thank you!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bill: space

Best for 2016 Chev 1500

Improved gas millage

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Slappytm: space

I will continue to use amsoil.

Been using the oil for 10yrs on all my vehicles after the recommended break in intervals. Never had any engine problems and love the extended intervals

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Berny 655: space

I used Amsoil for 25 years really bilive in the products

Good all around better in the cold less oil changes cheaper on the end less wear.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Puddin: space

Oil

Excellent service and product

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by 1stsubie: space

Great reliable oil

My Subaru is nearing 300000 km with the signature series 5W30 since first oil change. Winter cold starts are easy and not engine issue to report.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Nick: space

The best handsdown

Title says it all

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Granny: space

Conquers the cold

This oil makes a noticeable difference in cold temperature starts. The engine turns over easier leading to
faster starts with less battery draw.
The longer time between oil changes helps, also.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jdawg: space

Only run the best for my vehicles

I strictly only run this Amsoil in all my cars I would never run anything else. I use it in my 1986 Subaru Brat GL, 2002 Subaru WRX, and in my 2009 Toyota Tacoma TRD Sport. I recommend this oil to anyone who only wants the best for their cars or trucks.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Todd: space

Love it

Have been using Ams oil for years especially in my 2011 Kia optima which now has 226000 miles. Die to the extended drain intervals has saved me lots of money and my engine still runs like the day I bought it.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Soonerfan: space

I will buy this product again.

When I first started using Amsoil Signature Series motor oil I noticed that the engine ran smoother and fuel mileage improved by 1 mpg. Great product will use in my vehicles from now on.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Sergey the Welder: space

Awesome oil for turbocharged vehicles

Used it in multiple vehicles over the years, some being highly modified turbocharged cars. Latest betting LNF powered 2.0 K04 turbocharged Cobalt SS, HHR, and Pontiac Solstice 2.4L with aftermarket turbo kit. All of these ecotecs loved 5W-30 Signature Series and run way smoother than on OEM recommended Mobil 1 stuff.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bills Ecoboost: space

Ok performance

Switched to signature series a year ago. Minimal mpg improvement from tbe pennz ultra. Seems to quiet the engine noise but do not like how it turns black fast and has the dino smell. I flushed as recommended on first change. New formula this fall and hopefully improved

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Keith: space

Will continue to buy Amsoil!

Amsoil has the best product on the market. I use it in all of my car and even my small engine equipment.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by TTurtle: space

Very pleased

Use in all 4 trucks work and pleasure lawn equipment and Harley. Thumbs up

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Miracle: space

Must have in Arizona Heat

Absolutely Best stuff for extreme Arizona heat. Great piece of mind.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by mcf: space

Trouble free engine

I have used this product almost since the vehicle was new and enjoy the once a year oil change that this (and amsoil filters) allow. Now 200,000 kilometres and the engine runs like new.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Murffer: space

The Best for my Toys

I've been using Amsoil since 1979. I used it in all my 25 plus cars , 20 plus Motorcycles , 2 Tractors , lawn tractor , lawn mowers, my ATV , and my whole house generator . Boy am I hooked

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by MechMike: space

New vs Old?

I see the old reliable signature product I just bought has been reformulated for my next purchase. I hope Amsoil didn't fix something that wasn't "broke".

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rosco: space

Switch from conventional oil to synthetic oil.

Being a new customer to Amsoil, I've read lots of good reviews and spoke with Amsoil Tech several times, and lots of satisfied customers before making the switch. I'm still a few thousand miles away before the first oil change and a oil analyst test. I also use Amsoil oil filters. With all the above sad, I'm very satisfied with the product and the help of all the technicians. Thanks.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by None: space

Very Good

Using AMSOIL products for years and has never, never been disappointed, ever!!!!!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by No name: space

Great oil

Only oil I've used

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JB: space

Signature series 5w30 oil

Best oil ever. Use in my oil burning jeep. Oil use has dropped considerably. Great product. Love it and jeep now.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by AmsoilLifer308: space

20 year customer and I'll be a lifer

I use Amsoil in my Nissan Frontier, 4 wheeler and snowblower & lawnmower. I wouldn't use anything else. It never fails, always slippery, and allows high mileage between changes. I'm a lifer! Thank you AMSOIL!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by George: space

Great Diesel

Amsoil Synthetic Diesel Oil is the only oil I use in my 2007 Dodge Ram 2500. Very trusted oil, good folks that work win.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ron: space

Signature series smo

Good stuff

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by STONEY: space

ONE YEAR OIL CHANGE

I HAVE BEEN USING AMSOIL FOR OVER 20 YEARS ON ALL BOTH OF MY VEHICLES. I HAVE ALWAYS USED THE EXTENDED OIL FILTER SINCEL IT HAS BEEN AVAILABLE.
I USE THE SAME OIL CHANGE PEOPLE EACH YEAR. THEY ARE ALWAYS SURPRISED THAT THE OIL IS NOT GRITTY OR THAT IT DID NOT BREAKDOWN . I WILL BE A LIFETIME PREFERRED CUSTOMER OF AMSOIL FOR LIFE.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Lou: space

I never buy anything else

Whether it's my daily commuter or my weekend toy, I use AMSOIL to protect my vehicle's moving parts and keep it on the road.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Everything Ford: space

I have been buying this product for many years

I have been using this product from the beginning with my truck. I believe as a result I have not had any major engine trouble or turbo issues even after putting many miles on now

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tim: space

Have used Amsoil for many years

I've been an Amsoil Preferred Customer for many years. Have used most all of the Amsoil lubricants and other products at one time or another. Have never been disappointed. Love the way Amsoil continuously improves its products, including this Amsoil Signature motor oil. Try it. You'll be pleased, too!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by paybob: space

2000 tundra sr5

Love this oil. Been using it since the truck was new at 20 miles. Now have 233,000 on it and absolutely no problems with the engine. Oil changes have varied between 10,000 and 18,000 miles. :)

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Boswell: space

The Best

I have been using Amsoil products for 25 years, and is very satisfied with everything.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Eric: space

I will always buy AMSOIL

The best of the best work here and produce the best of the best products. I would pursue and career here if made possible.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bill: space

The best motor oil known to man

Engine has over 300,000 miles, absolutely no deposits inside as revealed by boroscope, change frequency is 12,000 to 15, 000 miles, 700 hours, this oil is simply the best

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by PO-BOY RACE-N: space

Good stuff

Used it 4 years but it seems 2 seep through gaskets after years if use. No sludge build up 2 keep it from leaking out?????????

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Doc: space

Great Product

I have been using Amsoil for over 12 years and am always impressed. The 5w30 Signature series never fails to impress. Darn never every oil change I am struck by how brown the oil is still after a years worth of use. Engine is always taken care of using Amsoil and I shall be using it for a long time to come!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dutch: space

I have used the products in everything for over thirty years

Better than advertised, trustworthy, reliable products.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by handyman: space

beening buying since 1980

I have used amsoil products in all the vechile i purschase over the years including my motor home some of the vechicles were diesel some were gas. i used it in them all.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Believer: space

It really does matter

I began using Amsoil back in the 80's after reading their claims vs conventional oil.

After some years, I transitioned to one nationaly recognised synthetic I could buy at a big box store...it was about the same cost, a little more convenient, and I reasoned, probably good enough.

In the process of time, I bought a 94 Miata. After some work, it ran well, nearly 30 mpg, but the lifters were noisey. To quite the lifters, I took each one apart, cleaned them, and reassembled all 24 of them with 10-40 high mileage oil of that one brand of synthetic.

Much to my surprise, the lifters were now much worse.

I immediately changed the oil to that same one brand, but 0-30. This made the lifters quieter, like they were before I cleaned them.

On a lark, I decided to try Amsoil 5-30 in the Miata. I could not believe the difference! I had done all that work, but all I needed to do was pour in a higher quality oil. The idle was now smooth and quiet; so much so that when I sold the car to another Miata enthusiat (advertising the smooth and quite engine at 185,000 miles), all they did before paying my asking price was open the hood to see the engine idling.

Amsoil. I've seen it make a diffdrence.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jason C: space

Amsoil Only!

I switched to amsoil in 2007 and have never looked back. It's the only Brand I trust in my vehicles.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JRobin: space

This is the only Oil I have used for many years.

I use Amsoil ONLY in my truck, car, Harley, and outboard engines!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by T BEAR: space

ONE YEAR OIL

MY FAMILY ALSO USES IT HOW ABOUT THAT

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Woodster: space

I buy this product every year.

I use the oil filter and the 25,000 mile oil for the mileage listed or once a year, whichever comes first.
The once a year always comes first for me.
Thanks for such a good oil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Doctor D2: space

Great oil!

Bought the oil. Best purchase decision ever. Engine is purring like a kitten, with the best mph ever.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chopper: space

I'm relying on the reputation!

I only came to know and use Amsoil from the previous user of my Nissan Titan. He stated he had used Amsoil in it after he bought it. Not wanting to change to a different oil even though I had always use Castrol or Mobile 1, I decided to check on this Amsoil oil he was using. I have to tell you I truly believe this has to be a better oil then what had been using in my last 45 years of driving! With all the testing that Amsoil does on their oil and what it goes in really impresses me at they know oil and they really truly know synthetic oil! I am proud to display my Amsoil sticker on my back windshield of my truck knowing that I am part of a elite group of guys that are wanting the best oil for their engines!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Daniel: space

Proven benefits

I've been using this AMSOIL for several years now. I saw immediate improvements in my daily commuter just from switching to their oil & filter

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tim: space

Only Oil I run

I run the full line of Amsoil synthetics in all my vehicles, my F150 Ecoboost is my primary work vehicle, I drive 7 to 8 thousand miles a month, I am a regional manager with a multi state territory, Amsoil makes excellent products Ive never had any issues

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by PF: space

Best of The Best!

I have been using Amsoil for over 25 years, although somewhat pricey, well worth it! I do oil changes every 10,000 miles and have put as much as 275,000 on my car without any engine knocks or breakdowns. I realize they recommend going 25,000 between complete changes, but I prefer to go every 10(k). This is the best of the best synthetic oil on the market!!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jesus: space

Signature 5W30 review

Excellent product, exceeds my expectations and I do change my oil and filters as Amsoil recommendations.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tom: space

good stuff!

Keeps my Jeep running good

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rick: space

Amsoil Works!

My 07' Toyota FJ Cruiser runs great on this product, much better than any competing brands. I use signiature series and put a high amount of miles on my truck in a very short time so I change my oil around every 5-6 thousand miles. Fast shipping. Good customer service. Definitely a quality product and a smart purchase for any vehicle owner.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Frontier man: space

Oil for truck

Regular oil for my truck.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Lucas: space

Is there really a review needed on the best?

This oil was purchased for a 2016 Corvette. They wanted the best, that's what they got

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by BobWol: space

Amsoil Products and Support

I have been using AMSOIL products since 1990. A mechanic introduced me and I have been using them in all of my vehicles ever since. As an example I started using AMSOIL in my 1988 4-Runner at 80,000 miles and at 225,000 no leaks and no burning. I have had occasion to call support to cross reference oil filters and have been very successful. Thank you!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Too many toys: space

Great Product

Yes Amsoil products in all cars, trucks, equipment, motorcycles, and a boat. Never had a problem. Had to do a top end rebuild on a motorcycle with over 300 hours on it. Valves were worn out but, the cylinder looked brand new! Amazing product.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dave 300: space

Highly Recommend this oil.

Since I switched to Amsoil in my wife's 1.6 liter ecoboost Escape it has been running smoother and quieter than with a competitor's oil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by RCinNM: space

This is the only brand oil I use!

I first used Amsoil in my GMC Yukon XL. I immediately noticed the difference. More power and better gas mileage. Since then, I've been using Amsoil in every vehicle I own and everything I own that has a motor: tiller, lawnmower, chainsaw, trimmer, weedeater, pressure washer, 4x4 truck, small SUV and my GTO.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tiger: space

Will keep using Amsoil in all my rides

The product holds up under extreme heat and saves you repair cost.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

Great product

.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by john: space

excellent

excellent

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Diesil: space

The 5w30 works well for me

I ave run amsoil 5w30 in my 05 2500 silverado for 12 years. Still runs like it brand new after 150,000+ miles. I change oil about every 6,000 miles and never had any wear problems or loss of power problems.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by M.Winter: space

Great as always

I've used and sold Amsoil products for about 18 years exclusively, without one issue. At least 100,000 miles on three different cars and one almost 170,000. (2002 ML 320). Once a year oil changes are the norm.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by cardi52: space

Great Product!!!

I only use the best oil and it's this brand will always use this oil and only this oil best I've come across really makes my vehicle run strong!!!!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by TerryRH: space

Smooth

Really smooth and quieted the motor a good bit. About 3k on this oil change and it still runs as good as the day I changed it. It hasn't started to break down like some other oils.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gunner: space

Love these products

For maintenance in truck. My husband first used them in the 80's. Got away from Amsoil due to costs. Now back with them. Met a man who took a course just on oil products. Amsoil came out way on top., Now use oil, oil filter and air filter Amsoil. Have complete confidence in the superiour quality of these products.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ode: space

I would buy this product again

Use this in my truck engine. It's a great product. It keeps my motor clean.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pipes p: space

Best oil

Ive been using amsoil for 25 years. Its pricey, but i pay it for a reason!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by David the Adventurer: space

Perfectly Satisfied with Amsoil

I have used this in my gas fired cars and trucks since 2002, no problems at all.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by CJNREMTP@28: space

Excellent Oil

This oil is spectacular! Somehow I failed to check the oil level in my wife's '08 Honda Accord 3.5L V-6 and when I did check it, it only had 2 out of the required 4.5 quarts! ; o I have not noticed any damage to the engine system since and count my blessings as she would have kicked my rear if anything would have happened to her beloved car! Thank you Amsoil for such an awesome product!!! You are a wifesaver!!! ; ) This idiot makes certain to check the oil level in her car now!!!!!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Reg Coderre: space

Excellent product. I use Amsoil in all my vehicles.

Very good product.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Erff: space

5w-30 signature series

Always use this in my vehicles. Best oil I've come across. Amsoil or bust

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by SDJazzMan: space

The quality is great and it lasts a long, long time.

I pulled into a gasoline station and they actually asked if I wanted them to check the oil. I knew it was okay but said - sure go ahead. When the attendant pulled out the dip stick I asked him to guess how many miles I had on that oil. He replied without hesitation and said that I had just changed it. When I told him that I had almost 5000 miles since I changed the oil, he couldn't believe it.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jin: space

Highly recommend

C7 Stingray, 2017 Equinox ,, 2009 Vibe

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by charlie k: space

love amsoil

love that i can extend oil change intervals

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by The hobbiest: space

You can't go wrong using this oil

I change my oil every 15,000 miles because it has a 15,000 mile oil filter, I could go longer if amsoil made a 20-25,000 mile filter for my car. I use amsoil for my lawn equipment, motorcycle, and now to lube and clean my guns

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Me: space

Excellent

I only use Amsoil. It is the best

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by George: space

This oil must work well

I purchased a used 1996 Chevrolet C2500 with 341,000 miles on it. The previous owner said that he only used AMSOIL. So I drove the truck for a thousand miles then changed the oil with AMSOIL. It must work, the truck has the original engine, original transmission and the original exhaust system

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by kirbstoy: space

Long-time user of Amsoil

I know exactly how Amsoil will perform in my 2017, F-150, 3.5L/twin turbo. I have used Amsoil for decades and have never had an oil-related problem with any of my engines. Amazing chemistry...that's for sure.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Exceptionmode: space

Always great

Simply perfection in motor oil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Titsmcgee: space

Helps clean oil injectors

Have a 5.3 that I bought did first oil change and ran valvoline full synthetic burned 2qts in 2000 miles. On my 5 oil change with amsoil and burned 1/2qt in 3000 miles. 5.3 are known for burning oil due to oil injectors clogging but running amsoil seems to have made a huge difference.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by El viejito: space

Keep's my trucks running like new

I buy this oil for my family SUV and so far is doing the job done

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Francis Gamache: space

I've recommended to all my friends and family members!

I've never seen a better product than Amsoil! When you use the Amsoil oil you can hear and see the difference at the first use! I recommend to all my friends and family members!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jim: space

My cars are all old and run well on Amsoil.

I use it in all my vehicles. Since none of of them go over 25,000 miles per year, I change the oil every March with Amsoil filters. The engines stay clean and, along with occasion PE, they all run very well.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bullman: space

I would buy again, & again.

Use in all my vehicles, and it definitely helps with the fuel economy.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bullman: space

I would buy again, & again.

Use in all my vehicles, and it definitely helps with the fuel economy.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Lee: space

Only buy AMSOIL lubricants

Normal, quick, and easy order process and quick receipt.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gi: space

Best oil on earth

I've tried all brands of oil from Mobil1 to Royal Purple and by far Amsoil is the best. I can really feel and see the difference. My engine runs cooler with Amsoil and even when I changed it at 25,000 miles it still looked better than all the oils I tried and I changed them at 5,000 miles.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Heal: space

Great

Great oil I change out at 7500 on a GMC Terrain 3.0L. Never had any problems summer or winter. I have 50,000 on engine no serious issues with engine other than regular oil changes. Very happy with this oil

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Popo: space

Great Results

The enginer runs so much smoother.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Charlie TUNA: space

Great oil!!

Been using in my 2004 Chevy Silverado for years!! Works great.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by SwanyWI: space

Awesome Oil.

I've used this oil in my 2004 Caravan from the point of new. I used it for work and changed oil in the 20,000 to 25,000 increments. The van now has 247,000 on it an it leaks a tiny bit but uses none. At 8,000 miles I need to add 1/2 a quart. No problems here and I use it in all my vehicles and equipment.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pizza: space

No more burning off like other synthetics

I was using another full synthetic because that's all I could find in our area. Noticed the other brand would burn off and I'd have to add oil about every 2nd tank of fuel. I switched to amsoil and the burning off stopped. Noticed no difference in fuel mileage or HP gains but like I said, I was already running a full synthetic.... Good stuff!!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jr: space

Best there is

I use only Amsoil in all my vehicles including my garden tractor. I use the oil, power shot, the Amsoil oil filter's etc. I love it for it's protection and the life of both the oil and filters. The power shot is the best stuff on the market to protect your small engines from water and ethanol. It keeps the system and carburetor clean. I had problems with water until the power shot and never again in the past 6 years. I wish it was in a bigger bottle at a better price cause the small one goes so fast. I live on a budget but make sacrifices to buy all my Amsoil products for my tractor and car and truck. I tell everyone to buy it and have most of my son's using it. The oil last so much longer in both vehicles and especially my garden tractor.......I use to use Valvoline but only now for top off if I don't have Amsoil. The large stickers are on my vehicle engine covers and on my tractor engine cover so others can see and know to a mechanic nothing but Amsoil goes in my engines and gas tank for additives......

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Dave: space

Great as always!

I use Amsoil in everything, so perhaps I'm a tad biased. But the 5w30 Sig Series does great in my Mazdaspeed Miata turbo & Ecoboost F150!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by AcuDoc: space

Will buy this product again.

Much better than expected.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by The Celica Driver: space

The One Oil Brand I Trust

I use Amsoil signature series 5w-30 on my Toyota Celica GTS and it makes my car runs great. My car is around 250k miles and I don't have oil burning issues on my vehicle. During the winter time it starts smoothly and it doesn't hesitate to crank. Oil intervals can go longer than 4k to 5k but I usually change them at that point since I drive over 70 miles a day in rush hour. Great oil and great pricing.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JJ: space

Perfect for high-performance, turbocharged vehicles

I used this in my '15 WRX which requires a high shear stability, synthetic oil. This oil was recommended by many websites and forums as one of the top oils you can use. Worked great while I had the car but I plan on putting it in my new Infiniti as well.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Horse-n-heeler: space

Great Product

I have been using Amsoil for over 35 years. Our current commuter car (120 miles per day) has 265K miles and still runs like a top. Uses very little oil (less than a qt per change)

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by none: space

i am very pleased with Amsoil.

I use amsoil, car, pickup, equipment, lawn mowers, tillers, and chainsaw. Protects engine and less time changing oit.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Carlitos: space

Gas mileage

I have a 2008 Lexus v6 and recently checked mileage on 300 mile trip.
Checked and double checked, 34 plus MPG. Amsoil Signature in motor with KN Air filter. VERY IMPRESSED!! Carlitos

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by M8ttix: space

Great stuff

Used to run this in my stock sti motor. Now it's built and I run the 5w40 Euro. Love all your stuff never had a issue.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Timber: space

AMSOIL

Have used AMSOIL OIL for years. 2003 SVT FOCUS has 332,600 miles on it. 2011 SAAB has 105,200 miles on it. Excellent products.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Barney: space

Amsoil Signature Series is the absolute best

While I was apprenticing to be a mechanic in the early 1980's a friend of mine challenged me to a comparison test between Amsoil 100% synthetic motor oils and conventional oil. As a result, I switched to Amsoil and have used it for over 30 years in all of my 4 stroke, 2 stroke, and diesel motors. It lasts longer, doesn't have the viscosity break down, and is a better lubricant than other oils.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Robert: space

Will buy again

Been using this oil since 2000 love it

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pdizzle: space

Excellent Product

I have been using this product since I bought my low milagr 2004 Mustang cobra back in 2013. I have trusted this product to protect my factory supercharged motor and it has done a great job. Happy with all my amsoil products. Loved there oil in my ATV's when I was younger and now I use there stuff in everything.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Moparsean: space

I have used this oil for years for several vehicles

I run this oil the full year or 15,000 miles as i fall under severe service useage guidelines. It has always kept the inside of engine clean and i rarely add any oil,it performs well,oil analysis comes back great. Both vehicles i use it in have high miles and i know its keeping them running well. Highly recommended. Amsoil is the best oil in my opinion. I even use amsoil in my lawnmowers. Synthetics are not all equal. This is the best out there. I wrench for a living and have seen the effects of using sub par oil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Vince: space

Long term use & I keep coming back

My car has 140k miles and I've been changing my ea amsoil filter every 10k miles (rated for 15k miles) and my oil in my vehicle every 20k miles (rated for 25k miles) without fail. Excellent results and cheaper in the long run when compared to other conventional products.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Q: space

Just as described

I've been using this in all my vehicles since 2010, I'll never use anything else again. I do yearly changes and even after being in the motor for that amount of time it still has a bit of color.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by LGC driver: space

Exclusively use AMSOIL all vehicles

Have used AMSOIL exclusively for 15 years in my vehicles. Have never had an oil related issue.
This oil is especially good in my F150 eco boost engine. Smooth, quiet, economical performance.
Best of the best!!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Vince: space

Long term use & I keep coming back

My car has 140k miles and I've been changing my ea amsoil filter every 10k miles (rated for 15k miles) and my oil in my vehicle every 20k miles (rated for 25k miles) without fail. Excellent results and cheaper in the long run when compared to other conventional products.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Todd: space

I'll buy more next year.

Good value for 12 month protection.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Ironrider1550: space

Another Great Oil

I use this in my chevy truck. I love the extended drain as it helps save me money and time. The oil still feels great when drained.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by HJH: space

Cheaper than an engine repair.....

I have used this product in my 2 vehicles since their first oil change. My 2007 Tahoe has 191,000 miles on it and I expect it will perform for many years to come. Although the oil and filter are rated for 25,000 miles or once a year, I still change oil and filter every 6 months; very reasonsonable amount to spend for a bit of extra insurance. I assume my engine is finally broken in since it regularly achieves 20 mpg on the highway.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by mm: space

great oil

keeps my engine running great

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tu D Truong: space

I should use it for life my car

I really like so much AMSOIL suythetic oil products

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Shawn of Indy: space

I trust Amsoil's products

I've been a customer for ten years now and have always used the Signature 5W-30 in my vehicles. I still own the same vehicles and change my oil once a year. I don't worry much about tracking the mileage but it usually ends up being 16,000 +\-. I'm confident their lubricant is protecting my engines at this mileage and only changing it annually has actually saved me money.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Skylukewalker: space

Good protection for the lazy car owner

I don't really have time to change my oil every 2 to 3 months, so I use amsoil, it is the best bet to keep my car running even if I only change the oil once a year. And I actually save money using Amsoil's best oil once a year than to use a cheap oil every few months. ...a no brainer if you ask me.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Viking Bob: space

Great Oil

I have been using Amsoil since the early 1980s all my vehicles, recreational toys, and tools. I have never had any issues. The cheapening of the word "synthetic" by Castol winning their court case has made it less clear what one is actually buying when the oil is labeled synthetic. Amsoil pioneered the synthetic oil industry and can still be trusted not to hide behind using the word "synthetic" as only a marketing ploy. I also use the 0w20 oil as specified in my newer Mazda 6. I do all my own maintenance and will continue to use only Amsoil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by The Flash (Gordon): space

I use have used only Amsoil products in all my vehicles.

I have been using Amsoil products for 18 years. I started with my 1998 Chevy K1500 Suburban which I bought new and started using Amsoil oil when it had 38,000 kms. It now has 423,000 kms and is running as strong as the day I bought it.

I firmly believe that Amsoil and regular maintenance, which I do mostly myself, are the reasons why this truck has lasted so long and has run so well for all these years.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by SilverEvoX: space

I will absolutely use this type product again

I use it everytime I do my oil change. Car runs smoother and better.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Retired Sergeant: space

Love this stuff!

I really love this stuff. I used to worry about my lubrication needs. Always thinking, my brand new truck isn't getting enough protection. Now, I don't worry about a thing until 10K or 15K depending on how I use my truck. Going from the Midwest to the west on vacation always concerned me because of the difference in Temperature and terrain. Now, I know my truck is protected.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Revrat: space

I believe in this product, and will continue to use it.

I use this product in all my vehicles, and have converted many friends to its use. Engines run quieter and seem to run smoother after converting to Amsoil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JKman: space

Greatest oil ever!

Put Amsoil Signature Series 5W-30 in our 2016 Wranglers and noticed both an increase in mileage and an end to the occasion start-up tick which happened on occasion. Never using any other oil than Amsoil in the future.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by D: space

Good deal

So far so good

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Wayne: space

Best Oil Availabe

It is expensive, but worth every penny. Instead of replacing every 3000 miles, it is once a year!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Big D: space

Best oil bar none

Interval of change time is great. Better gas mileage in my pickup. Works great great product.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by KP: space

Oil

Great oil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mcm: space

Only oil product I use.

When I first bought my vehicle used, the oil changes looked super sludgy, and the gas mileage was pretty poor. After 1 oil change with amsoil full synthetic with the ea filter, it is clean clean clean and I have 1mpg better fuel mileage after a little over 5000 miles. With any other oil, it would be black and gritty looking. I also like the extended drain intervals provided with this oils capability, so I only have to change my oil once per year.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

Excellent Product

Great product. Prolongs engine life.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bigtrain: space

Never a problem

I have 170,000+ miles, after the 36,000 mile factory warranty ran out it has been Amsiol ever since.
I use the 25,000 mile signature series with never a problem. I have to change the filter half way thru because I can only find a 15,000 mile filter, I have to add between 1/2 and 3/4 quart at this time. I always change oil around 24,000 miles unless I have been pulling my 7,000lbs for over 1,000 total between changes then for piece of mind I change at 20,000 miles. I drive a 2008 Toyota FJ Cruiser and take it off-road

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by EB: space

Best products on the market!

I've used AMSoil in all my vehicles including my Harley's since I purchased them, used or new and I will never go back to off the shelf products again. The cost difference is insignificant so it only makes sense to use the best.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by pilgrim: space

The only oil I have used sence I purchased my truck.

Best oil on the market.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Scott: space

All I use

Had some other people talk about benefits of Amsoil. Started using it in my '98 Ford Ranger with 108,000 miles on it. Sent in samples and at 185,000 miles truck was cleaner engine wise then it was at the start. At about 265,000 miles sucked a valve so had son put new heads on it. When tore into engine was no sludge or carbon on top of block and the timing chain looked like brand new. Son traded the truck in on newer one at 365,000 miles and still was running good. I use Amsoil in all my vehicles and yard equipment.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JP: space

Top Performance for your engine.

I added Amsoil 5w30 Signature to my 08 350Z HR. I noticed an increase in power immediately. I'm running against cars with much more power, and outperforming them, thanks to what feels like quicker acceleration through the rpm range. I recommend this product for all engines, as no other oil comes close.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Weekend mechanic: space

I would buy this product again and use it regularly

I use this my children use it in my friends use this. We enjoy the fuel savings less engine friction and longer service intervals it really saves a lot of money.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Joe: space

I'll keep buying this product

I use this oil on all my small engines. My compressor used to trip the circuit breaker regularly until I switched to this synthetic blend. Hasn't tripped a breaker since even in the winter

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by racerbug: space

I would buy this oil again

I put Amsoil in ALL of my toys.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jon: space

Always buy my oil from here

Last time we had to order amsoil we received free shipping. That just added to the great deal we already get from them. We've been using amsoil products in or vehicles for 2 years now and nothing else compares.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tim: space

Must have

Longevity, reliability and ultimate protection

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Biner: space

Only use the best.

Use this in my wifes Ford Explorer 4x4. It's got over a 100,000 on it and never had a problem and it run's like a top.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Steve: space

Best Oil, Period

I have been using this oil for 10 years on my 2006 Corolla, change the oil once a year, now have 168000 miles and still going strong

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chief: space

I'd buy the and will buy this again

I use 5w30 and 5w20 in all of my cars

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Johhnystock: space

Top of the top

I trust this oil. Running strong since one year. I use Zrod since cammed because of extra zinc but woulnd mind running Signatures series anyway.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Brian: space

Great product

Great product,great price

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Schlogg: space

Great products

I've been using AMSOIL products for 3 years now, started with engine oil and have also explored brake fluid, gas additive, grease, tranny fluid and gear oil. I began with the XL line of products then moved to the signature series and know that is all that I use. I would recommend AMSOIL products to anyone.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Johnnystock: space

Top of the top

I trust this oil. Running strong since one year. I use Zrod since cammed because of extra zinc but woulnd mind running Signatures series anyway.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bud: space

Use a soil in all of my vehicles

Best oil and value imho.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chuck: space

This is the oil I use in all my cars

First and best synthetic moter oil. I keep my vehicles past 90,000 miles so I need a oil that will make them last.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bob: space

Best oil you can get

I have used this oil for years. The yearly or mileage intervals are great and saves money plus I get the best protection for my truck. I study oil test and Amsoil is the highest rated product.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JimmyJom: space

Love this product

I was using Mobil 1 Extended then I tried this. Man the truck runs smoother than ever, almost like new. I will never go back, all Amsoil from here on out!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Grizzle: space

Makes my '06 Aucra TL VERY happy

After I bought this car, I put in its first fill of Amsoil SS at 3,000 miles to get rid of the "dinosaur juice". Now after 230,000 miles, it will still get nothing but SS for its NEXT 230,000 miles. It runs PERFECTLY!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jigger: space

AMSOIL is great

Have used AMSOIL sysnthetics for years. Have had new Tahoes and Buick Enclaves into shops and entire fluids changed to AMSOIL.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by MPM: space

Excellent Experience as always

I love your company. The best auto products on the market hands down and you always deliver without a glitch. Order is always accurate and the packaging is perfect. Thank you for the great service!!!!!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Nick Mac: space

Love it

Use it in my Lexus with 290k on the clock. Smooth. Nice viscosity. Now use it in all my cars- always will.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tinkerwatch: space

Great product

I use this product in all three of my Toyotas.
It's a great motor oil! My engine seems quieter and smoother, I have not used it long enough yet to tell if my mileage has improved or not. I plan to continue using it from now on.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jr: space

Best product for Evo X

I use the product for my oil changes, I've used many different oils but no one comes close to this. Loyal customer to this oil

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by none: space

I buy this product for both my vehicles

I have read all the material on oils . I use amsoil in both my cars, truck and both harley davidson motorcycles

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Red: space

F-150 oil change

Soon as I changed the oil I felt a difference in throttle response and shifting felt great little better mpg aswell

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Luke: space

AMSOIL signature series

It run a lot smoother than the P**$oil full synthetic I used during my last oil change and is definitely better than the dino juice it had in it when I bought it

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Steve 1954 Chev: space

I'm sold on this product!

I have been using this oil for years in myc1997 Honda. 235,000 miles later it runs like a gem! Nothing but the best for my cars and truck. Quality lubricant.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tacoma Bob: space

Best Oil

Used in all my P/U and SUV for past ten Years

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Keyzbum: space

This is the best and the only product I buy

This product lasts just like it says , a great product

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by beast: space

Superoil!

I been using Amsoil Signature Series oil more than 10 years and long story short-i LOVE IT!!! If you care about your ride this is oil for you. HIGHLY RECOMMENDED!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gump: space

Best oil there is

I have run Amsoil exclusively in everything I have that runs or moves. I'm convinced it has greatly extended the life of all the vehicles I own including my drag car. 8 seasons without a freshen up, and still going strong. Keeps internals spotless clean too. 40 below or 120 above, it's the best there is.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Freeman: space

It's the only oil I use . Try to get when shipping is free.

Shipping is expensive when I buy in bulk.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by ulcivy: space

This is only the oil I am using for more then 10 years

I am using it for all my cars and trucks and I am saving a lot of time and money. Not to mention that my cars run good in all seasons.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JR: space

Great product, Great protection

I began using Amsoil products over a year ago. So far I have converted all my vehicles to Amsoil. Since changing to Amsoil, I noticed that the engines run much quieter and my gas mileage increased an average of 5 mpg. I like the extended drain intervals and the protection I get. I have two high mileage vehicles and I noticed that the oil is cleaner when I check the dipstick and it's not as dark as it was when using regular oil. I highly recommend this oil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by tonyturbo: space

I would buy this product again

After 6000 miles oil is still clean

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Big johnson: space

This is the ONLY oil i use in my truck!

This oil stands up excellent in my vehicle, the level never drops and even the colour of it doesnt change much between oil changes, never black when it comes out! Fantastic oil!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by HD: space

Really enjoy n depend on amsoil

Use it in my 09 chevy z71 4x4 since new
Use in my wife's car.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by d: space

oil

great product

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mtnbiker: space

Fantastic Oil

I've been using this oil for 3 years now. My 2007 F150 has 135000 on it now. I like only having to change my oil once a year.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gene: space

Signature Series 10W-30 Synthetic Motor Oil

I have been using Signature Series 10W-30 Synthetic Motor Oil in my vehicles since 1998. I still use it in my 1997 Dodge Dakota pickup, which now has just under 120,000 miles on it and it still doesn't use any oil, even though I only change oil every 15,000 miles, and only change the filter every 7,500 miles. I was using this same oil in my 1998 Dodge Intrepid sedan until we were involved in an accident with it in 2012, at which time the vehicle was declared a total loss (with just over 214,000 miles on it, and it still wasn't using any oil, even though I only changed oil on it every 20,000 miles, and only changed the filter every 10,000 miles. Up until the time the car was declared a total loss, the engine had never been worked on for anything other than changing the spark plugs every 100,000 miles. We would still be driving it if it hadn't been for the accident that made it a total loss.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rob: space

My Oil

Been using this oil for 12 years.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Big L: space

Only product I use

I only use Amsoil in all my vehicles. Amsoil extends my oil change intervals and improves my engine performance. I'm well pleased with how this oil performs against conventional oil that I used in the past.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chuck: space

I use Amsoil for all my vehicles.

I put 100 miles a day on my daily driver. I purchased it with 40,000 miles on the odometer now it has 84,000 miles on it. 4 qts go in, 4 qts come out.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by A-Rod: space

I wouldn't buy anything else

I've been using Amsoil for years more people need to use it and stop buying cheap products!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Brian: space

Amsoil products

I love all Amsoil products very satisfied a longer duration before changing oil ever 6 to 7 thousand better than every 3000, with conventional oil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Airwreck Nest: space

Liquid gold

Eliminates rough idle and extended change intervals beyond what a typical customer expects. I get great feedback from my customer base and it saves them money while protecting their engines with premium product.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by walt: space

I am using Amsoil in all my vehicles

From my work vehicles to my play vehicles I use Amsoil in them all for peace of mind

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by James Born: space

Great product!!!!!!!!!!!!!!!!!!!!!!!!!!!

Really like it!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bobby Mota: space

Only oil I use

It's the only choice I make for my truck. Only down side is that not many local stores carry amsoil so to buy a top up litre is hard to find. I just buy one extra.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Bobby Mota: space

Only oil I use

It's the only choice I make for my truck. Only down side is that not many local stores carry amsoil so to buy a top up litre is hard to find. I just buy one extra.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by J J: space

Definitely keep buying

Have switched to amsoil on our vehicles. Love the 15k mile change interval.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by GRN: space

New user

I'm a new user of AMS products but am impressed with the ratings.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Olds455: space

Great to have extended service intervals

Not only do I believe Amsoil extends the life of my vehicles, the extended service intervals keep them out of the shop and me off my back for longer periods of time. When you commute long distances, like me, 3000 miles comes Way too quickly.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Lente Loquito: space

Simply the best oil on the market

I have been using AMSOIL since the early 1990's. Need I say more?

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Nick: space

I would buy this product again

Everything about this oil is great. I drive a 98 Toyota Camry that contains an engine toyota was sued over for its ability to make slude and lead to engine failure. Amsoil does not recommend using the extended drain interval (15,000 or 1Yr) with this engine however I only change the oil twice a yr putting on at least 7,000 miles per oil change. I had a 97 Toyota Camry with 280,000 miles with the same engine and the only thing that killed it was a car wreck. My current 98 only has about 140,000 and I expect it will last every bit of the 280,000 and beyond.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Teddy: space

Amsoil sets the standard in the lubrication industry

I had my 1964 Corvette project car all greased and lubed when I learned of Amsoil and then drained and replaced the oils and re-greased everything!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Vig: space

Great product!

Use it in my 2 vehicles, lawn mower. Great staff, only Amsoil!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by MLH706: space

Used for years.

I've used Amsoil Signature Series 5W-30 for years and will continue to do for years to come.

I first started using it simple as an avoidance to constant oil changes. Putting around 25-30,000 miles a year, it made more sense to change the oil once and the filter every six months, rather than wasting time changing conventional oil at every 3,000 miles. Many told me it wasn't safe to do so; however, I've never had any issues doing this.

First car...1993 Chevy Corsica 3.1L V6. 236,000 miles when traded. Engine ran perfect, car body rusting out.

Next car...1998 Subaru Outback 2.5L 4 cylinder. 263,000 miles before the body rusted apart.

Currently using in 2004 Subaru Outback 2.5 around 180,000 and Dodge Ram 2500 5.7 Hemi 130,000 miles.

As you see, long engine life with minimal time required for oil maintenance/changing, not engine issues, various engine sizes.

All of these vehicles have their oils changed once a year. Filters changed at oil change, and then again at six months.

Strongly recommend, especially if you like the simplicity of changing the oil only once a year or put many miles on each year.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Cadprof: space

Great Products!

I have been purchasing Amsoil products for about fopur years now, everything I own that has a motor and transmission contains Amsoil products. Great products and a great price form a great company.
Will always buy my supplies here.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by BIG BABA: space

AMSOIL 5W30 Synthetic Motor Oil

There is know beating AMSOIL. I have been using AMSOIL for 10 years and bank on how it is made and what it is made for. All their products are unbeatable in my eyes. Best mileage guaranteed and warranty no one can beat. Every car, truck, boat, big rig and more totally unbeatable for quality and service.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by TCS33: space

I save money with Amsoil !!!

Instead of changing oil and filter 3 times a year on my wife's 2010 Impala, I just change it once. And I am using a better quality oil and filter, when I use Amsoil !!! thanks

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

It is the best

I use thus product in my recently purchased truck. Mileage got better and engine ran smoother. I love it. I have been this product in mg last three used vehicles with outstanding results.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by jg021v: space

Synthetic Quality

Oil change intervals last more than six months. I prefer AMSOil 5w30 Synthetic Motor Oil over any other. "True Synthetic."

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by MadMatt!: space

Only the Best!

got another 70000 miles out of it .I was sold been using it in every vehicle sence. When you do all your own service work yourself you notice where n tear on internal parts, and i've got to say the products from amsoil When you rely on your truck to make a living and cant afford break downs. You only put the best product in it. I've used other products in the past. but one slipping transmission and switched to amsoil products. Well offer the best protection i've come across "greasy" Hands Down Matt.S.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by MadMatt !: space

Only the Best!

got another 70000 miles out of it .I was sold been using it in every vehicle sence. When you do all your own service work yourself you notice where n tear on internal parts, and i've got to say the products from amsoil When you rely on your truck to make a living and cant afford break downs. You only put the best product in it. I've used other products in the past. but one slipping transmission and switched to amsoil products. Well offer the best protection i've come across "greasy" Hands Down Matt.S.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Scott: space

Best oil period!

I run this oil in my truck and car. I swear by it!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gary the Titan Beast: space

The best of the best!

I've been using the Signature series in all my vehicles for 5 years. I live in Alberta, Canada & it gets to -40 degrees Celsius never a problem starting & im so confident & I proved it with our 2002 Nisssn Xterra 15 years old & engine prob will go for another 15 years!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rumpthump90: space

Bought this every time

I have bought amsoil 5w30 for all three vehicles I have owned, AMS has never let me down. I currently run this in my 2001 Chevy suburban with 180k miles and still running strong.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Marc: space

Works well

Easy to use

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Redidan: space

I will continue to buy this product

I use this in two vehicles a 2001 blazer and 2003 silverado hd

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Leeski: space

A miracle

I got in an accident a while ago. I got out of my truck to exchange driver information with the the other driver and noticed all the antifreeze leaking out of my truck do to the accident. When I seen this I went back to shut off the truck that was still running so the engine wouldn't overheat but the door was damaged and wouldn't open! My truck stayed running for over an hour with no antifreeze in it yet the temperature gauge didn't move, amazingly it never even came close to overheating. I owe it all to Amsoil''s superior oil that saved my engine! My truck is still running like new with over 380,000km! I'm a firm believer in the Amsoil line up and use it in everything that I own!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chris: space

Oil

Excellent product, helpful staff.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by TOD UMBRELLA LLC: space

Awesome!

Uses all the time

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by n/a: space

I would use this product again.

Easy to purchase on line, which saves me a trip to the parts store, comparable in price with other quality synthetics, and it pours and looks good too. I use this product in a new Ford Escape with the 2.5 Eco boost engine, and have noticed an immediate small increase of 1.5 to 2 m.p.g. My only concern is about 20K oil intervals. Hopefully my on board computer will tell me when it's ready to change as well.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Paul: space

I would purchase this product again.

Great product. Been using Amsoil for about ten years. My only complaint was the shipping charge. Amsoil has been running specials for preferred customers were they've been offering free shipping on orders over over a certain amount. When they offer this deal that's when I place my order.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tyson: space

I love this product, and will continue to use it

I found this product and all the others produced by Amsoil are top quality, and found they protect my vehicle's and equipment that I run Amsoil in

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mike: space

I buy these products yearly

I do all my cars motorcycles lawnmowers etc. once a year

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Tony: space

I will buy this product again

My car seem to run better and I get better gas mileage.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by OceanBoy: space

Life-Long User of Amsoil!

I have been using Amsoil for over 20yrs. I use it on my cars,suv's,motorcycles,lawnmowers,boats,&jetski's!!
In the long run it is the "BEST THING" you can do for your machinery!!!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Travis Brockmoore: space

I wont buy anything else.

I use Amsoil in all of my cars and they see a good amount of abuse from track days and autocross. Amsoil keeps my cars going strong. Proven to last longer and it does. Worth the money up front because you'll spend less in the long run.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Doug: space

Signature Series worth every penny and then some!

This best lubricant in the world hands down!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Crazzyjoe: space

Great oil

Used this oil in all my daily driven cars very happy with it . I also use amsoil in my classic cars great oil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mysftail: space

Use it religiously

I was introduced to the signature series by a friend who works on motorcycles for a living. He told me a story of this guy who called him and said he didn't have any oil pressure in his bike. My friend said bring the bike over and he would look at it. The guy showed up three hours later, and when my friend asked him what took so long. The guy said he had to drive it there, from North Carolina! We live in South Carolina. My friend tore down the bike expecting major damage, but not even a score on the walls of the bore.
I won't use anything else, and because my wife's car has a twin scroll turbo in it, i make it a mandatory when doing maintenance!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by JD: space

I will buy again

best oil hands down, make sure to check your oil often. When running this if your low you wont know it unless you check.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by ANITA: space

i would buy this product again

Use in my 99 ford Explorer

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Giovanni: space

I will definitely never stop using amsoil products

I use 5w30 in my car that has just shy of 200,000 miles I recently switched from 0w20 too 5w30 because of the miles I drive the car everyday pretty hard 75 miles each way too work I use amsoil since day one in every application possible and I have zero signs of wear on anything from the brake components too injectors

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by None: space

2007 Toyota Tacoma 50000 mi change with extended filter 12 m

Use 15w40 in my Ford excursion 2002 since new 140000 mi oil analysis shows no change since new .This is a 7.3 l diesel.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Matt: space

Extended protection you can count on

Been running Signature 5w30 in the last 3 brand new vehicles I have purchased. Change them over at 1st oil change. Does well in the hottest summer days and the coldest winter days. Use with the amsoil ea filter when available for my application and run 15k miles for change intervals.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by diamonbird: space

Best oil ever

You can't buy a better insurance policy for your vehicles

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Scorpion: space

Sig. Series 5W-30 Syn. Mtr. Oil

Amazing motor oil! I use it in all my American vehicles. We drove the RV to DisneyWorld in FL. I forgot to pack the oil change. Ordered oil online, Amsoil shipped it and it arrived the next day in FL. Easy oil change!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Toga: space

Awesome Oil!!

Runs great in my Tacoma and the oil is still running strong with 6,500 miles on the oil. Power and mpg still runs great.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Joe: space

Extremely Happy

I have been using Amsoil for a couple of years now. It started with my 2012 Chevy Traverse. Chevy required that I use a oil that was partially synthetic. I started using this because my dealership didn't work on Saturdays and it was hard to get in for an oil change. Also I soon realized that I couldn't trust the quick change oil shops either. I have a shop that will use my oil and charge me a reasonable fee for changing oil that I can trust. I like that I can go for a year on the oil and it helps keep my cost down. I would like to add my brother uses this oil also. He has a 2004 GMC Yukon XL with over 250,000 miles on it now on the original motor. When he started using it he had around 130,000 miles on the motor and it was using about a quart of oil every 2000 miles. When he started using Amsoil it kept using oil until he had around 6,000 miles on the first oil change and it suddenly quit using oil. We are both convinced that Amsoil saved that motor. Him and I are using Amsoil in all of our engines as well other Amsoil products and are extremely happy with Amsoil and will keep using it

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chad: space

One and done

Love the ability to drive a full year with out having to do an oil change. I may seem more expensive up front, but in a years span you saving loads of cash and your engine loves the quality.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by cj: space

would buy again

my 99 acura is running great after oil change

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Pun: space

Excellent product

Personal oil changes. And I like the fact that you don't have to do oil changes for a year or 25,000 miles

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Luis: space

5W-30

I use it on my chevy vehicles. The product and lab reports on it speak for themselves. This is a must product if your vehicle requires it.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Lennox: space

Yes

Excellent product

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Merwin: space

Best oil ever

Have this in my 2007 silverado.Seems to be doing as advertised.No engine problems at all.Runs great......Will continue using this oil.No cold starting issues with it.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by David: space

Amazing synthetic oil.

I swear by this oil. Simply the best fully synthetic oil out there. I got 220000 miles on my Altima and still has great fuel mileage and power.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Stephan: space

I will be buying from now on

I use this oil in all my newer gas engines, runs smooth, no engine noise, better gas mileage.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Rob: space

Yes

Used in all my vehicles. Season after season the best. An easier to read side window would be nice

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Chris: space

Definitely a repeat order!

Been using this oil for at least 10 years!
Great product!
Mileage increased in three of the vehicles by almost 5 mpg!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Donald: space

The Best!

This is the best motor oil on the planet. I have used it in all my cars with excellent results.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Enrique: space

I would buy this again

Will never try any other oil in my vehicle only run amsoil

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Enrique: space

Great oil

I love this product makes my car run way smoother

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by David: space

Every Oil Change

I must use product

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Greg: space

Highly recomended

Great oil been using in my toyota tacoma I change the filter at 10k (EA) and complete drain at 20k. Truck doesnt smoke and runs great with 225k miles.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Kassidy: space

I will buy again

Amazing oil, the best you can buy, noticed improvements in mpg

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Lucas: space

Best oil their is

I use this in my 2012 Silverdo with the 5.3 V8 and it is great. I run it for a year and forget about it. Keeps the engine clean and cool.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Walter: space

The best oil on the market and always Amsoil

Great product I use in my suburban.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Denis: space

Signature series is your best investment.

If you plan to keep your car or truck more than 5 years or over 15 years like me; just invest in the best oil. As a bonus: change the oil just once a year.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Gregory: space

I will always use Amsoil Signature Series

I have a 2007 Buick Terraza 3.9L V6. I have used Amsoil Signature Series 5w-30 since I bought it with 19000 miles. It now has 158000 miles on it. First thing I noticed when I switch to Amsoil was a smoother idle. Gas mileage increased 2 miles per gallon. Even with 158000 miles the gas mileage has stayed consistent at 19 in the city and 25 on the highway. I change my oil once a year with 12000 miles on the oil.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Samuel: space

Will continue to use this oil indefinitely.

This is for a newer turbocharged volvo, oil always looks good when it comes out and the engine is nice and clean inside as well.

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Raul: space

Only brand I trust for my vehicles.

Have been using this oil since 2005 in my truck. 2005 silverado 5.3L tuned and full bolt ons. I had used it prior for 3 years in an older truck I had. Very confident with Amsoil that I've been changing the oil in the silverado once a year for the past 11 years. I also have a 2014 and Amsoil is used in it as well since the first oil change was due. Back to the 2005 truck. Reason I told you its tuned... many people know how a tune gets your engine a "little" less life. Well, I have had to change out the valve cover gaskets twice within the 11 years I've owned it and as far as valves and heads. They're like brand new. Once a year change intervals. Truck has 140k+ miles. Amsoil has kept it running smooth since day one. Can't beat that!

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Robbie: space

Yes

2008cadillac dts I been useing it for 5 years in the car

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Jamie: space

I would buy this product again and again.

I use all Amsoil products in all my SUV and cars
Use the metal products on my firearms to prevent rust and smooth operation
Amsoil is the best by far. And my family's trucks and cars

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Matthew: space

Only oil I use

The best

Item Reviewed: SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASL)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Paul: space