Customer Ratings & Reviews

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"

I am seriously impressed by this oil. Not sure why, but after 2 weeks in my 2018 6.7 Powerstroke, it still hasn't turned pitch black. It still has a slight honey color. So there must be some reduction of cylinder blow by... Also, I swear I can hear my cold engine start ups running smoother. I am constantly listening to my engine. Also, I was surprised to see that the oil shipped to my house in CA the next day!

This oil works great and protects my engine. It was easy to order and arrived quickly. Thanks

I ordered this oil because i saw very good amazing reviews and honestly its one of the best oils I've used in my truck gives great protection and great milage

I've been very happy with the customer service with Amsoil for a long time. Easy ordering, very fast shipping. I use their products in all my vehicles. I also use their products in my offshore boat.

I started using amsoil 3 years ago after lots of research and found it to be the best. I use it for everything on my pickup.

I've run Amsoil in my 6.6 Duramax in screaming hot and sub zero temps with no issues at all. I intend to continue to use it.

Its a good oil but i was surprised i didnt get any stickers. When i bought it previously i got stickers

Awesome shipping time!!

Used in my 2002 bobcat 863 skidsteer and my duramax diesel pickups over the last 8 years. Never an issue with oil burn or consumption.

I have used AMSOIL in my Ford diesel for 15 plus years and still going strong at over 444k miles!

This is the only thing I have put in my truck seance I have owned my it.

I've just now started using this oil and it seems to be a good oil. Engine sounds great and starts quickly, doesn't use a drop. Hopefully it will stand the test of time.

I love the reorder feature. Great company and product.