Customer Ratings & Reviews

not to mention it has a longer life than other oils, but the normal "tick" a lot of Hemi owners experience just sort of went away. Nice. I love this oil

I have been using Amsoil in both my cars and motorcycles for 13 years and it has earned my trust in giving my engines the best protection I can use. I really am a fan of the signature series as it gives your engines even more long lasting protection. I like to run an oil that is allot better than it needs to be. With my factory warranty over now I can extend the oil changes from 4 thou miles to 6 thou easy. I could probably run it to 10 thousand miles or once a year using the extended life oil filter like my motorcycle but I only put on 5 thou a year on my bike. New England you have a wide variety of weather and temperatures and the Amsoil to keep my systems moisture and with hot and cold swings protected plus I light tow and it helps there too.

AMSOIL is the best synthetic motor oil on the market

I have been an Amsoil user now for 20 plus years, and I follow the 1 year oil change interval (10k miles per year average), and I love the less frequent oil change interval and the knowledge that my vehicle engine is protected even with our extreme heat we get in this State.

I have used Amsoil Oil for a Number of Years. My 2011 Saab 9 3 now has 175,600 miles on it. Have had no problems with oil.

There's nothing more to say! I run Amsoil in my engine, and Amsoil ATF in the transmission, and my car has never run smoother!

I use this oil in my 2013 f150 ecoboost. These engines have known problems with timing chains and phasers. I have been using this oil consistently and currently have 120,000 miles with no rattles or failures. I will continue to use this oil on my ecoboost.

This is some of the best oil i have used in my vehicles over the last few years.

Almost 2 years using amsoil 5w30 engine oils on my Lexus and Toyota.

For years I have been a fram and either castrol or valvoline guy in all my vehicles but I bought a new silverado high county and thought I want to see what the best stuff is like so a pulled the trigger and got the full amsoil treatment with wix filter and my next oil change it was almost like my oil was just changed so now I am running amsoil in three of my four vehicles and when its time for oil change I am going to run it in there

Great customer service & a phenomenal product! Thank you AMSOIL!

Recommend alot

Excellent quality oil. A little pricey per quart but the member price makes it reasonable. A must have oil for any consumer looking for maximum engine protection.

Using in my 20118 Corvette. Better than Mobile 1.

Started using this oil and immediately started having issues With the engine and carbon buildup was way worse than with cheap oil

I have been using this oil for years in all my vehicles. I trust Amsoil to supply me with the best products to protect my vehicles. I have never had an issue with any part of my vehicles that are Amsoil protected.

First time using in a GMC with a 6.2L. Have not noticed any changes but really like the extended time between changes.

Been using 5W-50 on my 2017 Hyundia since new, because of 2.0 turbo. Has not used any oil and engine and turbo have no problems so far with 50K miles/5 years. Use it with Amsoil 15K oil filter and only change my oil once a year.

Has been in my engine for a few days now. Runs great. Can't give much scientific feedback right now. I would buy again.

The amount of power to stay with the flow of traffic is noticeable and occourse the tach reading. Can help to think a gas saving's.