Customer Ratings & Reviews

I started as a dealer in 2009 i have sold and recommended to many I have used Amsoil in many vehicles and equipment got started due to needing a quality oil for my diesel truck and have used it ever since I strongly believe it’s the best it has never failed running cooler in high heat and towing has been it’s strong point I’m no longer a dealer it’s not for everyone because you’ve got to sell a lot but 12 years and still going strong Amsoil is the best and now so many have jumped on the synthetic train but Amsoil has remained on the top in my book.

2015 RAM 1500 ecodiesel. GDE Tuned from the first second the motor was started. Used the factory recommended Rotella T6 until the engine warranty was done (new motor). As soon as I put in this beauty of an oil, my oil temps dropped 2-3 degrees. Normal everyday driving. Highway commuting. I watch my temps all the time, and it was an instant drop in temp. Love this stuff.

Have been using Amsoil products for 40+ years have found nothing better, great products perform as advertised. Great

Good product I recomended

The best oil I ever had, my Cummins ISX15 runs great with drain at 50k miles, I would say Is no oil consumption with only this oil! My engine has 900k miles! BEST, thanks AMS Oil for great product!!!

best oil I used in my diesel

I used the recommended Rotella T6 forever, can’t get it at a decent price so I tried this and may just be the cold weather but I swear my engine is running cooler. On the highway (not towing) my oil temp would stay around 210-212, but it won’t get above 200 now unless I’m going up an incline or something. Super happy and feel comfortable with Amsoil in my Jeep!!

I’ve had three died pickups and this is the only oil I have ever used. Great performance and engine care with this oil.

have been using amsoil max duty oil in my cummins/dodge for some time 180.000.miles nd going strong

Always felt Amsoil is the best and never ever had oil issues with my vehicles while using Amsoil.

I run this oil in all my equipment and vehicles! Super Great product!

Great products. Always timely delivery. Don't use any other oil in my truck.

I have been running amsoil on and off over the years and different vehicles. I just recently bought a brand new eco diesel ram and thought this is my chance to put it though a true test... right from oil change numero unto. So far it seems to be doing good after 40,000 miles and 4 changes of oil. Will update as I get more miles

I've been using this in my '06 Dodge diesel for years at extended change intervals. I also use it in a small diesel tractor. It gives me easier cold weather starts than 15-40. I don't see any reason not to continue to do so. I run Amsoil in two generators, two motorcycles (Harley Davidson 20-50 and KTM 15-50) and run the Saber oil in my trimmers. No complaints.

Been running this oil in my 7.3 powerstroke for 200k and truck has 300k on it now. I usually ran the oil for about a total of 10k miles with 1 filter change at 5k miles, but recently I decided to have my oil tested and with changing just my oil filters every 5-6 miles. I ran the same oil for over 18k miles and it still checked out good. I do hotshot so I put on miles fast and I won't use any other oil brands.

Happy with your products. Ships quickly. Easy to use website.

Used Amsoil in my 2006 Ford Van. runs much smoother and much quieter now than previous oil that has been used. Seems to have more pick -up that before!!

Absolutely appreciate this oil product for my 7.3 diesel and the truck loves it too will continue to purchase.

Absolutely love this in my Duramax runs better gets good fuel mileage

Great product use amsoil in all my vehicles and snowmobiles should say all my toys