Customer Ratings & Reviews

Changed the Transfer Case using AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid at 30K, time will tell. The pouch container worked out very well.

Purchased an older Tacoma and short time after it developed a slight shudder on take off. Changed with OE fluid and it did seem a little better for a short while. Decided to change again and use AMSOIL. Shudder gone!

Recently did a transmission fluid and filter change along with a new Banks pan. Using the Amsoil ULV transmission fluid made this job much easier. The fill plug on my 2023 GMC 2500HD is not real easy to access. But the crushable fluid packs from Amsoil really helped in replacing the fluid. It is also a very high quality fluid that helps keep the transmission temperature down. I would highly recommend this product.

This is a transmission saver and great product!

Changed the transmission fluid and filter at 35k miles in the GM 10l80 with this fluid. Going to change it again at 50k to get the rest of the fluid out. So far it has been running fine and shifting good (only at 36k miles so far). Looking forward to see how it goes.

shifts like new again

Have used Amsoil for years. Quality Products

Overall, great product, but tough to find outside of ordering from Amsoil. Just flushed tranny and the product works great, but I wanted a couple of extra quarts to be sure and no one in the area had it. On the upside, shipping is fairly quick and reasonable if you spend enough.

I replaced my original transmission fluid earlier than the manufacturer recommendation specs is a no brainer for me. And have used Amsoil for my engine oil for years with hesitation great product

Love Amzoil. Worth every penny. I wouldn't run anything other than amsoil in my vehicles. Top of the line product.

Lowered transmission pan, changed filter, and replaced drained fluid w AMSOIL ULV. 10R80 shifts like brand new, especially down-shifting on hill decline - super smooth. Highly recommend.

Great product and really does well in my ram 1500

Night and day difference from other oils I have switched all my oils now over to AMSOIL

AMSOIL products are great the shipping is bit to be desired almost 3 weeks

2019 f150 5.0 10R80 transmission. Drain and fill with OEM replacement filter and filter seal. Replaced plastic factory pan with PPE standard depth pan. Collected all fluid that was drained including trans cooler. ( collected 9 quarts) Was able to replace approximately 9.75 quarts for proper fluid level @ 210 degrees F. Cleared transmission adaptive tables utilizing Autel tool. Performed drive cycle relearn procedure as close as I could. Have been driving truck in Tow haul mode in stop and go traffic and in Normal mode on highway. Unbelievable difference in transmission performance. Transmission operates better than new.

Have been using Amsoil motor oil for years in both of my h/d cycles. And as far as I can see it is doing great. First time in 94 gmc 4L60E I will let you know

Did a 30k interval drain and fill when I noticed some performance degradation on the quality of shifting. Noticed gear change improvement afterwards. Will continue to monitor performance before the next change interval.

Amsoil I that i can trust everytime.

Works great

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