Customer Ratings & Reviews

Awesome stuff!

I purchased my truck new and have always depended on Amsoil, also have always used Amsoil in all my vehicles and equipment.

Great product

Package originally was damaged. Distributor was out of particular size. And it took a month to replace. They should have offered different container sizes to make delivery a timely issue. A month is too long to wait on disposable products.

Great oil for my duramax

I had engine replaced and the shop said that they strongly recommended Amsoil 5w40 diesel oil for my new motor,and jasper recommends it too.

If you absolutely need the best oil product protection for your Diesel this is it. Since it is a true full synthetic it beats all synthetic blends hands down. Plus it has the backing of Banks Engineering the leaders in Diesel performance. While this product is probably the most expensive Diesel Oil on the market but the specifications far exceed most of the oils on the market. If you are hard on or push your Diesel to the limit you can rest assured this oil will provide maximum protection available. A small price to pay for peace of mind.

It's the best oil I've ever used, probably the best oil in the world!!!

Only oil I will run in my 2019 Cummins!

Amsoil is one of the best oils on the market, after all AJ did make the first API synthetic oil. Instant oil pressure even when it's cold than 32 ferhenhiet.

1ST TIME USING PRODUCT SO FAR SO GOOD GREAT TO DEAL WITH

I immediately noticed a difference in the cold start being much easier and quieter. Will be using this oil from now on!

Long lasting and good protection for your engine

We absolutely love Amsoil products! Amsoil protects all of our equipment. Diesel powered Ram, turbo cars and of course 4T in our Briggs powered Kart.

In my humble opinion, this is the best oil on the market. Its the only oil product I use in my motorized vehicles.

Wow better mileage, cleaner motor and cooler by 10 degrees the using factory oil .

Amsoil is the only oil I will use for my vehicles.. it’s the best there is!

Excellent product.

I would highly recommend this product and any other Amsoil product. I use all their oils!

I have a 5.9 cummins ram with a fully built compound turbo set-up and Goerend transmission. The truck makes 800+ HP at the wheels and I drive it quite hard. I have only used and will only use Amsoil products for this build. I am 63 and and have seen and used different products over the decades. It is so nice to now just look at the Amsoil website and order what I need for whatever I am working on. I have always told my sons "oil is cheap, engines are expensive"