Customer Ratings & Reviews

Had a slight whine in the diff. On my C6 Vette Drained and put the Amsoil severe gear in. All is quite now. Can't beat Amsoil products All I use now is Amsoil.

I use this in my Harleys transmission. Works better than regular oil or transmission specific oil. No clunk from the transmission when you use this.

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