Customer Ratings & Reviews

I watch my oils pretty close when buying brands. Amsoil Max Duty has the highest rating in wear tests. Seeing as how I plan to keep my truck for many years, this is my oil of choice.

Wouldn't put anything else in my engine!

I love your product

My truck love the extended 15w 40 I use the 20 50 in motorcycles you can feel the change right away engine just pers

Have a 2014 Ram Ecodiesel...they have known bearing defects. Use Amsoil to reduce the likelihood I'll need a new engine.

Looking forward to 300000 miles plus on my truck

Used this for years served me well ,

Best diesel oil out there.

Love it

Best oil value for my Cummins.

In my experience and research AMSOIL is the best. The ordering process is fantastic and I always get the product within a few days of ordering.

Great tough high performance oil

I love the product.

I like Amsoil it is a excellent oil

I use it in my Ford F250 it seems like the mileage went up a little when changing to the synthetic Diesel Oil.

I have a 2006 Dixie Chopper XT 3300 with the 33 horsepower Generac engine this oil excels in high heat continues to hold its viscosity oil still very clean after 100 hours that if I wanted to I could go to 200 hours before Servicing

I used this in my kubota m7040 tractor and I'm very pleased with the product. Usually after runnning regular oil in it, after just a couple of hours it will already turn black, but after running 40 hours on the AMSOIL, it is still very clean.

Best oil I have ever used!

Great Product

Awesome