Customer Ratings & Reviews

This also great product

A good application for heavy use offers better protection.

Did 3 Flushes and drain on my daughters 2008 Rav4 V6 Transmission and replaced differential and transfer case fluid. What a difference. Car shifts smoother and getting better mileage. Before it had a lag before shifting and that has gone away. This is the third time I have done this service, but the first time with Amsoil. If you are concerned about trying Amsoil in a Toyota don't be. We have had this car for 13 years and hope to keep it going with Amsoil. Bought enough to flush the 2017 4Runner which I will do this fall. Looking forward to see the improvements in performance to that vehicle. Also wondering if the mileage will improve on the 4runner.

Great oil

Best I can do for now is a four. The transfer case shifts smoother and more quickly. How it will perform over time .....no idea. Since it's an Amsoil product I suspect very well. But I can't state that until I see the results over time. You guys really should ask for a review after 6 months or so.

The best product I have ever used hands down!! Vehicle shifts better and runs cooler!!

The best product I have ever used hands down!! Vehicle shifts better and runs cooler!!

Truck loves it, will always use it

So far so good, transmission seems to run smoother

Great product and I love the packaging. Made the installation fill a breeze. No pumps or hoses necessary !!! Thank you

Only 100 miles after the change, shifts seems to be firmer

FYI, there is lots of data on the internet that verifies Amsoil has a superior product line up across the board...I will testify that towing my 10,000 lb Travel Trailer 330 miles non stop at speeds between 60 to 75 mph into a 12 to15 mph headwind with 95 degree ambient temps. and 70% humidity my transmission temp. ( Stock 2019 F250, 6.7 Diesel 4x4) never went over 207 degrees. Enough said. Thanks Amsoil Ford

Put this ATF in my 2017 GMC Sierra 1500 at 100,000 miles. Factory fluid was toast and I was having some torque converter shudder and clunky shifts. My truck now runs at cooler transmission temperatures and the clunky shifts and shuddering are gone completely.

The synchros are pleased and engage smoothly up shifting and down shifting.

With the price of vehicles today, I like to do all I can to protect my investment, so I try to use the best products IMO to maintain them in good working order. For me Amsoil is the way to go to accomplish this goal. Love the flex bags that make this job a breeze to do, especially in these hard to reach areas with minimal clearance.

Just change my fluid on my 2002 cavalier with this and very impress with the performance. My transmission usually has a whining noise when i accelerate at slow speed. Since the change it disappear. Thought this fluid helps that.

I was really happy with how fast amsoil shipping was. We all know they make good synthetic lubricants.. Only time will tell as to how good. But I'm happy with their products and shipping.

I have been using this xmsn fluid in my truck for the last 15 years. When I change fluid it still always looks new, truck still shifts like new. Good stuff.

I flushed the ATF on a friend's car using the Multi-Vehicle Signature Series AFT, and he experienced a solid 9%+ increase in gas mileage. The wear characteristics of the signature series products are unquestionably superior to anything else on the market. I drained the old fluid, and used Valvoline Synthetic ATF as an intermediary flushing agent to ensure maximum dilution of old ATF, then re-flushed using Amsoil Signature Series ATF. Also changed the filter using Wix brand transmission filter. (Fyi, I'm an experimental physicist, and have been using Amsoil products for over 40 years.)

Convenient packaging. Good seal under cap. Easy to use.