Customer Ratings & Reviews

My transmission is shifting very smoothly and my temps have been steady even with me running my Jeep hard at times uphills.

2025 Sierra 1500 with a 10 speed with 2000 miles, did not like the way the transmission shifted so I swapped out the fluid with the Amsoil ULV. Made the shifts much more consistent and positive like it should be. I thought this was a waste of time and probably would not work but i was proven wrong, best thing I could have done for this transmission!!!!!

Can't nothing on the market compare to amsoil. Two thumbs up and if my feet had thumbs, I'll throw them Up to. Thanks amsoil.

Oil that does the job!

My transmission is running as smooth as ever.

I use this in my Chevy 2500 HD because I plow and tow and it runs cooler temps on transmission

Thanks to Amsoil, the only mfr I could find with a definitive/ suitable substitute for the overpriced Mopar fluid. Excellent !!

My car transmission was slippery and I change oil from dealership and not working that oil too than I order amsoil it’s best and it’s fixed my problem

Did a transmission flush and filter change in my 18 Tacoma using 12 quarts of AMSOIL signature series ATF and wow. I’ve used other quality products in past in the same manner but this ATF made a noticeable difference in smoother more responsive shifting. Never used it before now, and it will be my go-to from now on.

My Silverado 10 speed shifts way smoother and runs cooler since swapping to the amsoil ulv fluid!

Been using amsoil for several years in everything I own. Great oil

Great product.

Another great product from amsoil. Wish it was cheaper but I still want it

Fast shipping, great packaging. Truck runs great.

My 2007 ML350 purrsss a lil less and more appealing to listen after a transmission fluid change. Definitely getting peace of mind after using an Amsoil product.

Best performing Most durable ATF

avec le easy pack, c'est vraiment facile d'atteindre les trous de remplissage difficile d'accès! Sans compter que l'huile à l'intérieur excède les requis du fabriquant! Ma transmission n'a jamais si bien été!

Slushing and changing the filter and using the ams oil to care of my shutter in my 2020 Chevy, Colorado.

Transmission shifts much smoother

Transmission shift's smoother than ever and also runs cooler now. This is my first experience with Amsoil but I highly recommend