Customer Ratings & Reviews

Have been using Amsoil oil for over 30 years. Use it in everything.

It's really hard to give a review on something like an oil. How do I prove this oil will make my transmission last longer? I can't. I have Amsoil signature series aft in a handful of transmissions. I couldn't tell any difference except on the 2015 Masda6. 132,000 miles. After changing it out twice(didn't drive between, just idle for a few minutes) I lost 5th gear and it wanted to stall. The old fluid looked good. I was very concerned, but I cleared the transmission codes and it's driven perfect ever since. It does feel firmer in my opinion. I do wish amsoil would give out more data on how their transmission oils can be a multi vehicle oil and what the differences actually are. It's hard to trust any company that just says 'oh ya our oil will definitely work in your transmission' and doesn't explain how and why we should run their oil over oem. I still kinda think oem fluid is possibly better. But I really have no clue.

I have much better shifts with this fluid compared to the Kia SP-IV fluid.

Great product.

Great!

When I am serviceing my vehicles only the best products will do! I want the very best protection for my equipment. Thats why I use Amsoil!

Quick and easy use. If you do not have a pump the bag makes it very convenient to get into those tight spots of your transfer case. For a quick and easy dumping fill . This was used on a 2014 ram and also a 2014 jeep wrangler

2015 Chevy Silverado 6.2l 8speed. My transmission started to shutter at random intervals, under load, and any speed. I read something about an Amsoil change fixing that problem. And it’s been a few months and so far it has fixed it.

I have an 06 2500 Dodge with 306000 miles and have used Amsoil since it was new.

This review is actually for the ATLQT-EA. I ordered the ATFQT-EA in error, returned these(easy process), and re-ordered for the ATLQT-EA. This particular fluid is for the WS rating of the Toyota in my Avalon. It was doing fine, but I always wanted a synthetic. After only 40 miles I honestly cannot tell any difference, but that is ok as I was not having any problems. Further on down the line when summer comes and see the temperature readings, I should be able to see somewhat cooler temperatures, I hope. I bought the 0W20 oil as well. I see so many reviews with 5 star ratings, Amsoil has to be doing something right. In regard to the return I had to make, I just want to thank all involved, as I was expecting ...not sure what I was expecting, really. Of course, I had to pay return shipping which I absolutely deserved to have to do. I mailed the package one morning at The UPS Store, and a representative from the warehouse called at lunchtime the next day to confirm my order(can't blame him for that), and the next evening I had the replacement fluid, which I found amazing. I couldn't give UPS a bad rap either. Great experience.

I had my mechanic Replace The Transmission and Differential fluids with this and its very smooth!

Used in my transfer case of 2020 Chevy Silverado 1500 for 30k mile maintenance. Love the liquid cherry!

Did a complete flush on my sons 2002 Ford F-150 with 206k miles. It functions perfectly and hopefully it’ll serve him well for a long time.

I’ve used this transmission fluid in everything that safely takes it. The shifting is always improved over stock and the overall life of the trans is extended and that’s my piece of mind.

Did an ATF fluid change on a LAND ROVER LR2 SE 08 last month using the AMSOIL SIGNATURE SERIES and what a difference in gear changes, no issues on cold starts which was my main concern. Beats paying the dealer $85 per litre for fluid. Would definitely recommend this product.

I changed oil in my transfer case, the bag works great, the quantity is on your website, great convenience!!

The Best of the Best

Problem free, and easy shifting Worth every dollar

It smells like gear lube which tells me it has all of the high pressure additives to protect components of automatic transmission and transfer cases. The collapsible container is enough to make these products #1 but after 3 drain and refill on my built 545RFE (with 2800 stall converter = hot) there is no particulate in the pan and almost none on magnet. Powerful shifts, runs cool, and keeps it clean. 💯 the best.

still need more time to use this