AMSOIL SEVERE GEAR® 75W-90 100% Synthetic Gear Lube
SEVERE GEAR is designed for those who demand the best. Engineered with high film strength for high-load demands. Reduces friction and provides the ultimate protection against wear. Excels in extreme temperatures. Helps maintain efficiency and outperforms conventional gear oils. Excellent for all cars and trucks, but especially well-suited for towing, hauling, racing, commercial use or other severe duty.
Delivers excellent performance in hot and cold temperature extremes.
Resists breakdown from high heat, preventing acids and carbon/varnish formation.
Wax-free construction improves cold-flow properties, improving fuel economy and cold-weather shifting.
MAXIMUM WEAR PROTECTION
Specifically engineered for maximum performance in severe-duty applications.
Maintains viscosity for long-lasting protection against metal-to-metal contact.
Proprietary AMSOIL additives form an iron-sulfide barrier coating on gear surfaces, providing the ultimate line of defense against wear, pitting and scoring.
Helps prevent "thermal runaway," a phenomenon caused by a lubricant’s inability to control friction and increased heat under high-stress conditions.
Inhibits rapid lubricant degradation and component damage, helping equipment run better and last longer.
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The entire ordering process was easy and delivered to my door. I no longer have to use a pump and the mess that is created by the process of trying to get gear lube into a differential. The Easy Pack says it all "Easy".
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Smooth Operation
By 
Noslen , 
a 
Verified Buyer 
on 
April 09, 2025
Amsoil 75-85 Sever Gear Synthetic works great for my MY2016 Ram 2500. This is the second cycle of using the gear oil from Amsoil and I would suggest the use in your vehicles
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
2006 F250 6.0 Rear end
By 
JEFF M, 
a 
Verified Buyer 
from 
Tennessee 
on 
April 08, 2025
First off, the easy fill packaging is the GOAT! Super easy for fill those hard to reach fill plug holes. I decided to try AMSOIL gear lube while installing a new pumpkin cover. I also swapped out their ATF and engine oils. I can say I do get better MPG, as I saw my MOG climb using the same tank of gas around town. I’ve got a 60 gal. For the first half of the tank, was at 12.1, for the second half, 13.6. I can’t wait to test on a long trip. My truck is quieter overall and feels smoother, and wants to go more so than it did before. I’m a believer and will us all AMSOIL lubricants going forward.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
As described
By 
JEREMIAH, 
a 
Verified Buyer 
on 
April 05, 2025
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