Customer Ratings & Reviews

Not confident when I first started using Amsoil in a 350ci V-8 over 20 years ago, I was amazed to see the oil consumption on that aged engine actually decrease significantly. Now using the Signature Series Amsoil 5W-20 in my Mercury that has 154,000 miles. Runs well!

Great product!!

Always use this in my vehicles.

have been us it for years (1994)

I have been using Amsoil synthetic oil products for more than 50 years and refuse to use anything else for my vehicles. I use to manage a fuels & oils analysis laboratory when I compared the differences between different synthetics and petroleum products. I witnessed the difference and continue to see the difference in the performance of Amsoil synthetic oils. They just perform better and last longer.

Appears to be great lube oil for my cars and pickup. I have not yet dismantled an engine to inspect because I have not had to!

It is the best would never use anything else.

Change once a year is a no brainer. However you have to invest in a top quality oil. Over 300k miles on my Volkswagen (gaz).

For my wife’s car, great long lasting product.

Wonderful oil. Doesn't burn away, and keeps my engine parts

Only have 300 miles on this oil change! First time using Amsoil, really haven't noticed any difference yet, but very Hopeful!

My HellCat deserves the best performance oil there is and Amsoil has it , take that to the bank 👍👍 !

I have noticed that since using this 5/30 amsoil, that it stays a lighter color longer when I check my oil level.

The best oil money can buy

Use it in my 2006 jeep liberty 2.8l Deisal. Runs smooth and cool. About 4000 miles on the oil change and all is well.

👍👍👍

👍👍👍

This is the best Oil that I’ve ever used I am definitely going to use this from here on out I just bought a brand new car and I change the oil at 13 miles to Amsoil and the motor quiet it down even more and that’s on a brand new motorThanks again for making a great product

If you want the best 100% 5W-30 synthetic engine oil then Amsoil is the best.

If you want great protection for your engine that takes 0W-20 weight that's proven to work. Then Amsoil 0W-20 is the best for your engine.