Customer Ratings & Reviews

Great product. Still experimenting since installing my by-pass filter system. Oil looks cleaner than before.

Doing good so far, just put in back in June. Seems to be doing good.

Always prompt shipping. Best oil out there

Change oil once a year or 5000 miles

I call this real engine oil, I feel that while running my truck hard that AMSOIL oil protecting my engine internals better then any other engine oil out there.

The best oil period.

Great product

Engine oil.

I have used this oil for the past 11 years and by far it is the best that I've come across

Great products

great oil

I use this product in my 13 Frieghtliner with a DD15. 60-70000 km between oil changes. My DD15 does burn or lose any oil, as a matter of fact I don't have to add a drop. My oil pressure is higher before a service then regular brands overall. I can't rave enough about this oil.

Great oil for my power stroke.

Love Amsoil products. I run their lubricants in every oil reservoir in my truck. I don't have a temp gauge on my crankcase oil, but in my transmission, changing to Amsoil brought the temp of the oil down a measurable 10 degrees. that is significant. I find their products well worth the money, their filters well built, and they ship promptly. It's not a hard decision to make.

Customer is well pleased with the product!

Great product great customer service

I have used Amsoil in my gas vehicles and loved it this is used in my 6.0 Powerstroke will be my first time in my diesel so far it's been 3 months and truck is working great I will reorder for my next oil change and have a better feel for the product

As advertised ,Great products . Fast shipping

The best oil in the business! Keeps my 2004 6.0 running strong. Still running original injectors, high pressure oil pump and head gaskets. I run it 10k with OEM oil filter changes every 5k. Nothing else goes in my trucks!

I use on a Diesel generator.