Customer Ratings & Reviews

I use it in my truck and it last a long time before I have to change the oil again it pays to use the good stuff

I like that I Can count on quality.

I use to use mobile 1 annual. After a few weeks the engine would start getting sluggish. With amsoil i do not get the sluggish feeling. Engine is still ruining great!

I've been using this Amzoil premium synthetic oil for 2 years and have been very happy with it. My car is turbocharged and runs smooth and cool with this oil.

Great product, my Ford Transit 3.7 engine runs very quiet and smooth. Like never before.

This product is in my wife's car, which puts me at ease, she won't have problems while traveling.

Love it,great product.

car runs with more pep

Great product! Won't use anything else.

It works great in my 2018 Silverado. Been using your product from 1980. Wood not uses anything esle.

Like all things I'm skeptical, but The signature series has proven its worth both in cost and in performance. I've been given nothing but superior results by this product. Both my trucks have it in them and both run smoother and quieter and with just this change have shown better gas mileage.

use on all my high mileage vehicals...i get about an extra miles more per gallon on average per tank, so big cost savings, plus i only change oil once a year!!

changed oil.

We love using this oil.

Great product at a good price

I only use Amsoil in all of my Vehicles. I have been using Amsoil for many, many years and will never use anything else. When you want the best buy the best AMSOIL !!

the product is great,i feel this will prolong the life of my engine and will be purchasing again in the near future!!!

Using it in my Tahoe change all my fluids expect transmission my mileage went from 14-15 to 18-19. Hope after doing transmission will go over 20.

2019 Subaru Outback 2.5. I went from 26.5 mpg to 29. To 30 mpg. Less engine noise. So far it's great.

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