Customer Ratings & Reviews

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

👍

Have used oil filters for my 2019 Duramax in the past. Time to service my transmission and rear differential so I upgraded both to the Banks Ram Air pan and cover. Decided to also upgrade the fluids and the temp levels are noticeably lower.

2016 GMC Yukon Denali 8 speed Had a very bad transmission shudder. Completed a transmission service using this fluid. Shudder is gone.

Just replaced all the transmission fluid plus the transfer case

Second amsoil fluid change on my 19 1500 boosted hemi, this time a deep pan took 10qts vs 6 for OE pan.

Great as always

Changed transmission fluid in my F150 Powerboost at 39k and immediately noticed smoother shifting and slightly better fuel economy. The truck is also going into electric mode a little more and staying in electric mode a little longer. Don’t wait too long to do yours.

Great product, easy and convenient to use. Love it. Fast delivery

Great product Amsoil is all I trust in all my vehicles in all applications. These quart bags are a godsend trying to fill front, rear diffs, transfer cases and transmission on my GMC Sierra. Made the job so much easier and no mess or waste.

Just had my transmission serviced with new filter, new aluminum pan, and Amsoil ULV fluid. Already notice smoother shifting. Hoping this helps prevent some of the inherent problems with the Ford 10R80 transmissions. Time will tell.

Just changed fluid & filter on my 480LE 2005 Silverado 2500 4WD. Got 118,000 on it, babied by me for the last 21 years. AMSOIL Seems quiet and more smooth first miles. Its had a very loud first gear since new. First gear is straight cut instead if Swirl cut , I am told. Transmission never been apart, other than a billet torque converter about 10 years ago. Original converter was slipping Code P0894. Seems very quiet with the AMSOIL. I will continue to buy from you based on my current experience. Thank you :)

Great product, consistent, high quality, works exactly as claimed. It’s all I’ll use for my lubricant needs, from oil, to grease, to fuel treatment and more.

I saw an oil analysis of various transmission fluids online. Compared to the factory OEM transmission fluid, this provides much more protection.

Excellent product at a competitive price providing very good value. This can be said for the entire Amsoil product line. Only wish there were retailers in my area!

Lasts for longer than usual products.

Hard shift before the transmission is warm has stopped