Customer Ratings & Reviews

This is great is you have a harley with a very loud transmission.

Awesome stuff, things running smooth

We use it in our Ram diff with the new Banks cover that helps to keep the oil much cooler, and it's an oil that can be used for many more miles than the competitor's because of it's superb quality.

Fast delivery and great product

Tried this extreme gear to quiet my shifting of gears, especially first gear. It did improve the engaging of the gear but not much in the noise engaging produces. Although if you hold in the clutch for 5 seconds before kicking into gear. It slides in quietly if your not paying attention you'll find yourself double checking. It also quiet down the noise at the transmission and overall contributed to a cooler engine. Definitely better that SYN 3.

I'm running this in my harley transmission and it made a noticeable difference.

Just changed the drivetrain fluids in my Tacoma , to Amsoil 75w90 server gear . Noticed a great difference right away. Best oil there is !!

Great diff oil

Were always looking for ways to quiet down the clunky Harley transmissions, I have tried all different types of fluids and recently tried the Amsoil 75W 140 severe gear lube and it really does make a difference. It's also easier to find neutral since switching to it.

Great product! Use in everything I care about.

Outstanding fluid. Transmission runs smoothly. My only complaint is one of the packs was leaking when I received it.

Absolutely the way to go in my street glide transmission. Takes some of the Clunk out when going in to first gear. Does a excellent job

Good product that will last at least 75k miles under normal driving conditions. Used in front and rear diff of my 2018 Sierra.

I used this on my 2014 Jeep Grand Cherokee SRT Front and Rear differentials (with 50K miles) and after an over 1K mile road trip my truck is nice and smooth. Thank you Amsoil

This is the only gear oil I have used in all of my BMW'S in the last 7 years. I think it is the best.

I am returning from a long distance motorcycle tour and needed replacement rear oil for my two motorcycles. I like the thought of the soft bag instead of the hard plastic bottle and hope to be able to fill the rear directly from this bag. Friends of mine use Amsoil and highly suggest using it.

Swapped this into all of my diff’s, really makes a difference. Great price also

I needed to change the differential fluid in my Dodge pickup and after many recommendations I decided to go with Amsoil. I wanted to use the best product and the packaging is perfect. Easy to fill up the differential with this. It’s worth every penny!

I've been using this on my Tacoma now for a while. The squeeze part works really well , & Amsoil products are high quality. Recommended!

Have been using it in my trucks & motorcycle for at least 20 yrs. Not a single issue so far.