Customer Ratings & Reviews

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.

Changed oil at 12000 miles with some heavy towing. Had the oil tested and the results came back excellent, going to change again ant 15000 miles and have tested to see where i go next.

Oil stays clean for a long period, oil analysis tests great! By far my oil of choice!

Best diesel oil

Great oil. So much better then full synthetic and dinosaur oil.

This is the best oil I've used.

The best oil i have ever used and will continue to use in every vehicle i own.

Great Product

The proof is in the results. I tested the Rotella T6 from dodge and had higher than averages in Iron, copper and silicone. With the amsoil all of those are back within spec on the 1st run of amsoil. I ran the amsoil 500 miles longer than the Rotella. My second batch of amsoil is in the engine right now with 2000miles on it.

Good winter oil

Great service with a great product. No better way to protect my L5P !

Keep up the great work

So far so good for the oil. The best oil on the market as I am concerned and especially for my Diesel Heavy Duty F-450. Like the other products purchased as well.

Been using this since the original oil was changed out. When I get the chance to talk of how I feel about what is required to make a Diesel engine to be environmentally compliant, (which I'll hold my opinion). No matter how long or short a conversation is, the one question asked of me is what oil am I running? After answering Amsoil, their response is usually, I'm running the best, or if someone is another brand loyalist, their response is it's one of the leading oils out there! After reading and watching videos on Amsoil, it was a simple choice!