Customer Ratings & Reviews

Used the Signature ATF to change out the transfer case oil on my Excursion. Easy Packs make it simple to get the fluid into the fill port without spilling a bunch of fluid or having to hold a funnel at an odd angle. Haven't had any issues with the transfer case prior to changing to Amsoil fluids, but I don't expect to see any issues either.

This Stuff is Amazing !!! I am Glad I became an AMSOIL customer (for life) from now on and my future generations will be AMSOIL costumers. There is not thing out the the will compare to this brand I try Royal Purple thinking it was the best, but AMSOIL exceeded my expectations !!! … on all types of oils !! LIKE IT OR NOT AMSOIL the best oil in the market !!!

Did a drain and fill on the 2007 CRV with 190k miles. Now shifts and runs like it should.

Got the product and put it into my two CRV's. No problems so far. Been in there about a month. Was a very dark fluid when I drained it. Will be interesting to see what it looks like with 5000 miles on it, and then again at 20,000.

I have been using Amsoil for over 40 years and never had an issue with any of them

I think I used this one for my transfer case, I did notice that it goes into gear a lot faster and smoother. Will be using again.

1997 Jeep Cherokee fluid change bumper to bumper.

Great oil, when I use Amsoil I have no worries. I use it in my V10 RV, 2017 Highlander and 2018 Equinox.

Love this product. I’ll be putting it in my Ram next. Smoother shifts. Love Amsoil

Awesome oil Recommend to use in the 6.7 Powerstrokes

Better feedback from the shifter. No more notchiness. Would highly recommend to anyone wanting a positive enhancement to their shifting feel.

This is my first use im putting it in a Jasper Remanufactured transmission 6 speed Ford . I’m looking forward to the superior results plus I’m putting it in my transfer case

What a difference, just like I had it rebuilt. Thanks Amsoil.

I swear by Amsoil ..all I ever use

Amsoil came to be as their transmission fluid gave them notoriety. Let’s not forget. Was using my manufacturers oem ATF and it was fine. But even with 3 changes over 85,000 miles which is extra the oil was getting dirty quick. Probably due to fact the transmission holds 8 qts but only 3 can be drained leaving a lot of old oil. Also my trans runs very hot. Did 5 3 qt flushes and transmission oil was good as new. The car has super smooth shifting now, far smoother than before. Almost feels like the transmission isn’t even shifting. I have heard that in some cases the shifting becomes harder. Due to less friction, however wasn’t the case for me and I am fairly satisfied by the performance. Actually feel it has restored performance and equally probably returned to its epa estimated fuel economy. Got to keep those fluids fresh Hoping with higher temperature capabilities the oil will remain fresh and properly lubricate.

Had my transmission rebuilt and used the best oil on the market. Didn't do anything to the engine but after the rebuild the engine felt like it had grained monstrous horsepower. Got a ticket on its maiden voyage. Always had good relations with Amsoil and their long list of products. Shipping was fast and checkout was easy on the website. Namaste

I am unsure of the brand which was in the gearbox beforehand but the difference in shifting effort was immediately noticeable and got even better after driving a bit. This was my first time using Amsoil but I do not feel the need to try anything else as I have done in the past. Hands down best shifting experience in a manual Hellcat!

Excellent product. Highly recommend!

Did an Kim change, filter and BD Pressure enhancer valve. Truck shifts and runs better and stronger than before in stock mode

Recently changed the ATF & filter in my CX5 with a little over 100K kilometers to the Signature Series Fuel Efficient ATF. Shifts are now smoother than butter. If I wasn't watching the tach, I honestly wouldn't even know when the shift happened. Awesome product, wouldn't expect anything less from Amsoil.