Customer Ratings & Reviews

Used exclusively in all my Cummins diesel trucks. 300,000+ miles on them. One just recently had transmission rebuilt only for OD issue, and other has never been opened up. Superior performance in the high desert heat where I live, and long service intervals between changes. Always stays red!

Drain and fill on my 13 volvo s60 t5. Slight improvement on gear changes.

Put this in my T case. Old oil was past do. This fluid got rid of some noise in the cabin. Works good. I'll see how it holds up this winter when I use 4x4 the most.

I bought this product to use in my transfer case in a truck with 300000 km so that I can keep on driving it indefinately and know it has the best protection.

Amsoil products work great! The tranny shifts smoother.

Used this on my 2015 Ford Explorer and it'a working great ! 92,000 and going

I use this product in my 2005 Jeep LJ and have had no issues just smooth transfer in the transfer case.

Car works different

Cool thanks

Use in my daily drainer and it's great

After changing the fluid and filter, the truck runs just like new. Could not be happier

Lovin' it! We'll see how it does over the long haul, but had numerous transmission shift fault codes, neither led myself or a more experience gearhead to believe the tranny in my Chevy 2500 HD was failing, just had some intermittent quirks. With that, I made the shift to AMSOIL when it was decided upon to change the tranny fuel, especially not knowing if the reseller business had performed the task since the Chevy was nearing 50k miles. Went with a deep pan and filter, added LOTS of AMSOIL tranny fluid, and no more intermittent fault codes, slightly better gas mileage, better shifting, and lower tranny temps. Purely not saying AMSOIL is a tranny repair recommendation, but in my particular case it's all relative.

One I call the best of all oil never had problems. I have 2017 Malibu my car rans okay & rougher be for I changed oil I took my car to be tested on a dino, I think I spelled it wright if not sorry anyways found with the oil I had in the car at running at 80 MILES my RPMS WAS 3200, After changing to Amzoil at 80 MILES RPMS dropped 2700 to me that's a big difference the other oil that I can't say is one of top brands.

I drained and refilled 4 times, driving a few days in between each change. It cleared up the shuddering on my Honda that has 240k miles, giving the transmission a new lease on life.

Looked right, smelled right, great service and website. My Duramax and Allison seemed happy in the short term.

I have been using Amsoil for 5 years in my 6.7 cummins. Truck runs great. My 2011 ram with 6.7 has 300,000 miles on it. I change the filters every 20k and the Amsoil every 40,000 . The engine has been bullet proof . GREAT PRODUCTD

Full disclosure. I don't know if Amsoil is the best oil on the market because I'm not a chemist. But I do know that I trust the Amsoil brand more than any other in the industry. When it comes recommended by guys that push 2k+ hp through their Cummins, I trust it will be just fine in mine. I will continue to use Amsoil exclusively in every component of my truck because I believe it's the best I can get.

Makes the Taurus shift silky smooth!

Use on every scheduled maintenance

When I need a product that you don't need very often, i.e., ATF, I will always go to Amsoil because I can trust the product to be what it is supposed to be and more. I will always trust all their products to not only protect my equipment while it is operating but to protect it while in storage from corrosion.