Customer Ratings & Reviews

This fluid made my Chevy Traverse shift much smoother. Now, I cannot even detect when it shifts into higher gears.

Do your new Chevy or GMC 2500/3500 HD a favor and replace the Transfer Case fluid with this stuff! Just compare the additive package this fluid has compared to AC Delco fluid, it's a no brainer.

If you have a Chevy or GMC 2500/3500 HD with a 10L1000 Transmission, this is the fluid for you! Do a complete flush with this fluid and you will won't even notice your truck shift gears, it's that smooth!

Works great Transmission goes into high gear lock up much better Picked up 2.5 mpg

First time ever using an Amsoil product. I just did one drain and fill. So far my transmission is shifting smooth. I’m feeling a difference already in just one fill

Needed to change my ram 1500 transfer case fluid. Found out it needed special fluid and found Amsoil had the stuff I needed. Fast shipping, great price and they are known for excellent quality products!

This high quality transmission fluid is Toyota approved WS for use in CVT transmissions. I used it for a 2014 Lexus ES300H hybrid and previously in my old 2008 Toyota Prius every 30K miles and sold it with 200K miles and never had a transmission issue. I'm going to continue using it in my Hybrid Toyota CVT transmission.

Love the packing, makes it easy to squeeze in like a capri sun. My transfer case operation is silent and smooth.

20k kilometers ago I had my transmission rebuild. So I run all Amsoil in everything accept my transmission until now and right away I noticed smoother shifting and I feel at ease now knowing what fluid is in my transmission. I highly recommend Amsoil on or in everything gear or engine related. Thanks Amsoil!!!;

Good quality

Only transmission fluid I use in my 2013 GMC Duramax with the 6 speed Allison. Transmission shifts smooth and effortlessly especially during a recent trip in the mountains with a 11k lbs trailer. Only transmission fluids I use in my vehicles.

I did a single drain and fill on my zf9 transmission at 30,000 miles. Shifts smoother. I will do a drain and fill every 30,000 miles or so for life of vehicle. Easy maintenance for long term reliability.

40,000 miles 2019 Honda Ridgeline 6 speed. Transmission was surging under low load and light throttle, you could see the tach raise and fall a thousand RPM. After doing one drain and fill that has completely gone away. This stuff works!

great product

I decided I'd better change the ATF now at 44k than to wait longer. I'm glad I did, because the fluid was getting off color. Being you can't get it all out, I'll change it again in 10k, or maybe less. That's when I'll use the Amsoil. This change I used the Ford stuff. I also put a deep pan that holds an additional 1.5 qts.

This transmission fluid completely fixed all of the symptoms I had with my transmission. At just 30k miles, the transmission in our 19' toyota highlander felt sluggish and almost like it was slipping; especially in 1st and 2nd gear. I looked up common issues and found the UA80F transmission in our Highlander has been having failures documented at very low mileages (around 55k miles). I researched and many other owners found the oem trans fluid may be the contributing factor and a complete fluid replacement may help symptoms and longevity. I purchased 2 gallons and after draining the Trans and refilling, I pulled the cooler line and slowly ran some of the fluid out, while simultaneously refillingbwith the Amsoil ATF. For only 30k miles, it was darker than it should have been, almost a brown color. After the fluid color slowly cleared up, I filled to the proper level. The car could not drive any better now. Shifts are crisp and positive and any feeling the trans is slipping is gone. Feels like a different car. This makes the powertrain feel so much more connected than it did with the toyota oem fluid. Toyota usually has great products, but sadly, they fumbled the ball with this transmission. I would reccomend everyone replace their oem fluid with this ATF. Not only will it likely save the Trans from failure and reverse symptoms I experienced, I have also lowered the transmissions operating temperatures and my city MPG has increased from around 15, now gets around 17mpg. Thats a huge increase for this heavy of an SUV. I have 4k miles on the new fluid and it drives and feels so much like I would expect a Toyota product to drive; nothing like before.

The best transmission flue

I had a 8l90 shudder issue and with the synthetic Amsoil. Transmission fluid it resolved the problem.

I had just had the transmission service of flush and filter done. I then changed the fluids in the front and rear diffs and used this in the transfer case. Thank goodness I did. The fluid that drain out was black as coal. Now I can rest easy knowing the transfer case is running on fresh Amsoil fluid.

This is great fluid for standard or heavy duty applications. The Mopar fluid as issues in cold environments but this fluid flows constant at all temperatures.