Customer Ratings & Reviews

Every car and or truck I buy I immediately change all of the fluids on it. No mater how many miles are on them I start with a clean service plate. Rear differential front differential transfer case everything gets amsoil including my engines.

Anything made by these folks is top notch.

Did a full ams oil fluid change wow what a difference.

Should’ve done this change as soon as I got my vehicle. Now at 250,000 mile on my 2003 Silverado,it is still a big improvement.

Bought Severe gear oil 75w-140 for ptu fluid change. The car feels smoother after the change. Please give a big raise to whoever design/package the oil in squeezable container. It helps a lot when filling the unit in tight space without need of hand fluid pump!! Wish there are more local retailers that carry the product so I do not have to deal with shipping and waiting.

Looks good, will see how it looks next service. Shipping was quick!!!

Had a chatter in rear end, changed the gear oil with severe gear along with slip lock . Chatter is totally gone. Truck has 270000 miles on it and now runs smooth.

This has been in my race car for several years and the gears show no signs of wear.

The product is worth it just for how easy it is to fill up your differential and not to mention it's the best differential oil on the market hands down. My actuator in my k1500 front differential engages faster I believe now for 4x4.

Changed the differentials and transfer case. Noticeable improvement in quickness and less noise. In addition, "felt" like it was a smoother transfer. Anecdotal at best for the moment. We'll see at the next interval what condition the oil is in. Due to that inspection, I don't think asking for an evaluation before a service interval is quite fair or accurate. That being stated, I am confident it will perform well.

Great product. Used on front and rear differentials for Ford and GM cars/trucks. Easy Packs are the way to go.

Easy to use bottle, Amsoil quality!

First time using but feels heavy. Can’t wait for change to see how it holds up

I use Amsoil gear oil in my Yamaha FJR1300 final drive. With the squeeze bag its super easy to add and its noticeably quieter in operation.

Fantastic packaging really makes changing transmission and differential oil changes, easy! No special tools required, even in the tight clearances under a Miata!

2019 Ram1500 longhorn 42k miles. Had a shudder at low speeds. Changed out with amsoil and everything is great!

I got the Severe Gear 75w-110 for the rear diff in my '04 S2000. While I like the idea of the squeeze bag, on the S2K the fill hole is oriented in such a way where it was just easier for me to use my trusty hand pump to get the oil in. So far so good. I haven't driven it really hard yet, but I have noticed that the diff is noticeably quieter. I'm pleased.

I use nothing but AMSOIL in every thing. My lawn mowers, Motor cycles, Cars, Truck, Transmissions, & Differentials, EVERYTHING!

the best gear oil I could ever ask for great easy to pour!!!

Quieted out the final drive and the bike runs smoothly.