Customer Ratings & Reviews

The lube is clear and is easy to use in the new packs. I trust all my vehicles to Amsoil products.

We use this in our Ram 2500 which pulls a travel trailer. Seems to perform well and stay relatively clean. It's an expensive product, but a good value in protecting very costly differentials.

Works great

Been running this gear oil in my dirt race car, in the transmission and differential, have not broken a gear in years, Thanks

All good

Pouches made it easy.

Impressive. I used Amsoil Severe Gear for a rear diff service. In my opinion, the rear diff is a bit quieter. Engagement on turns or into driveways seems a bit better.

I use the 75/140 severe gear in my PTU. It’s close to the cats and gets incredibly hot. Other synthetic brands smelled horrible and looked like tar after 20k. The severe gear still flows out and doesn’t appeared to be destroyed after that same mileage. I will only use this product in my PTU.

I changed out all my front, rear differential oil and transfer case. If you do a lot of towing why wouldn’t you use the best gear oil.

Can’t say anything about quality of oil yet since my first time installing but packaging makes install super easy. No need for funnels or hose attachments.

Easy Pack worked well, I would like to see an option for a small flexible tube that can attach to the nozzle to help aid in getting to the tight spots

Amsoil has been always #1 in my book. Love the easy squeeze packing.

Amsoil has been always #1 in my book. Love the easy squeeze packing.

I purchased the Severe Gear oil for both of my vehicles with great success. No issues, nice and quiet. I only cut the tip on one bag and switched the caps and tip as needed, so there was less chance of a spill. I sure hope the woman who designed the flexible oil bag is lying on the beach somewhere and is having a margarita! It is brilliant, easy to use and the oil flows very smoothly. Thank you.

Great for Harley transmissions for the infamous cluck you get when shifting. Now butter smooth. I’d love to give you free advertising with a extra large tee shirt or a banner! Keep up the good work

Changed the rear and front differential fluid and this stuff made a big difference in the way the car runs. Seems like it runs smoother.

It's the only oil I'll put in my car

Love it in the bottle Hate it in the bag, Never lost as much as i did from the silly bag. made my own spout for the bottle

I changed the rear differential in my 2014 GMC Sierra with AMSOIL gear lube. The process of ordering and then using the product was easy. The package makes it simple to empty all the lube into the truck without spilling a drop. I would highly recommend this product.

I use this vehicle for a combination of paved mountain driving and a very rough steep trail type road with sections of water crossing’s. I never pull a trailer except a log splitter on my property. I like that I’m able to use the 75w-110 severe gear that fits my vocation for this purpose without having to use the 140w lubricant. Next time I will use the friction modifier from the OEM dealer with this product as the slip lock modifier did very little to improve the noise when I’m on hard pavement and starting a left or right turn from stop. Very nice squeeze container also.