Customer Ratings & Reviews

Really helps keep the differentials cool

Bought the wrong one. Needed 75w 140 for the PTU for my 2019 Ford Explorer Platinum, 3.5L twin turbo. Cost more for return shipping than the product. My bad! Apart from, reviews and AI info this by far is the best to protect your ride.

gear oil appears to be working great on my truck (Ford F-150). purchase was easy and install was super easy.

Used in the rear end of my 2023 Nissan Frontier Pro 4X with almost 80k miles on it. These trucks have a common issue of whinny rear ends. It didn’t go away totally but it is definitely quieter than before. I used the thicker type because of towing a boat and trailer occasionally. Recommend this product.

I have been using AMSOIL products for about 20 years. I do my vehicles and my wife's with Amsoil products and they have been doing great. I like the Severe Gear cause it is easy to pour and great quality, like all their oil.

Easy to use with plastic bag.

Changed out the rear differential on my 2022 Tundra with this product. Whatever the dealership used prior had the rear end slipping just a tad, and the torque didn't quite hit it like it should. I don't think they use oem fluid. But this is as good as it gets. The rear end holds the power and puts it to the wheels after the fluid change. No more jolts of torque when putting the pedal down. Really good product so far and would recommend. Pricey, but it is quality fluid at the right viscosity.

Perfect

Runs smoothly. Slightly better fuel economy. Not sure if rear diff fluid would actually affect MPG.

Purchased this for my Ural motorcycle, which is very hard to shift due to the old-style transmission. Noticed a huge difference in the ease of shifting after switching oils.

We all know the quality already, I spent $130 on 4 L of 75w-140 but it didn’t even come with a sticker?!?

I take a lot of family road trips and after switching to the AMSOIL you feel the difference in the quality of the oil.

Transmission shifts perfect

Outstanding product as always

I use this gear lube in the front differential of my Jeep Rubicon and it has held up extremely well. Last time I drained it to do the axle seals it still looked like new after 25k miles and the inside of my differential was spotless with no signs of wear.

Better quality and price than the BMW brand.

Used different name brands of gear lube in the past, but decided to try this one this time around. Right after I took it for a drive, you can feel the difference on how it drives. The drive in this 19 year old truck is so smooth that it feels like it is brand new.

I have used this product for many years now after experimenting with HD Screaming Eagle, Lucas, Mobile 1, the purple stuff and red stuff. None compare to Amsoil. Much smoother shifting and prolonged protection for hard shifts and hot days.

Not a review of the product, as much as the container- I changed the old in both diffs and the fluid in my transfer case, and these collapsible bottles were invaluable and let me add fluids without using a transfer pump. So cool, I hadn’t seen these before.

Would recommend to ever