Customer Ratings & Reviews

Great product! I use it in my 2018 f-150 with the 2.7L ecoboost now granted a 1.5 mpg increase isn't much but it ads up when you put on a lot of miles every little bit helps. It's even nicer to have the peace of mind with the added wear protection due to the new start-stop technology who know what long term internal damage its helping to prevent due to these added emissions systems. Big thanks to Amsoil for the great products keep up the good work!!!

I feel the AMSOIL 5/30 is the best protection for my engine.

Awesome oil,

Good oil I won't use anything else in my 2018 Camaro ZL1!

my truck is getting the best gpm it ever did

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