I've normally used AMS Severe Gear 75-90 in my differentials. Glad to see they now have 75-85. This was my first time using the pouch containers vs the bottles. I swear this the pouches saved me about 45 minutes in time. Super efficient and easy to use. I'll never go back to bottles.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
So far so good!
By 
CHRIS, 
a 
Verified Buyer 
on 
February 04, 2025
I’m a big fan already. Let’s hope it continues to deliver
I couldn't believe how much more quiet my Tundra was after replacing the gear oil in both diffs and transfer case. I'm a long time believer in Amsoil, so the superior drivability was expected.
Of all the gear oils I have seen, this is definitely one of them.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
the item leaked lost almost half of the gear oil
By 
DAVID, 
a 
Verified Buyer 
on 
January 20, 2025
the item leaked lost almost half of the gear oil
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5 star rating
Direct replacement
By 
DAVID, 
a 
Verified Buyer 
from 
North Carolina  
on 
January 19, 2025
Chose this oil over GM factory oil since the GM part number was listed on the package. I like that it was the exact same viscosity so as to get the Amsoil quality as well as maintain fuel economy.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Gear Oil
By 
KRISTEN, 
a 
Verified Buyer 
on 
January 16, 2025
The product is superior. The time it took to get, however, is ridiculous. Ordered on December 16, 2024. It’s January 16th 2025 and I still haven’t received it. The first package that came in was missing the product. The second package never made it. The third package showed up with the wrong weight.
I have used Amsoil 7590 gear oil in my differentials on my 2004 Dodge Dakota I feel less resistance coming from my differentials and seems to be working great no chattering I did add the limited slip differential additive with it because I read that in the Dakotas they need extra additive I know that the severe gear comes with it already in there but from what I've read it wasn't enough
The no mess pouch makes it easier to put the lube in the differential and everything feels smooth when driving.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Quality oil
By 
Vin D, 
a 
Verified Buyer 
on 
January 02, 2025
This is the first time I bought gear oil from AmSoil. I got this for the rear in the Mrs F150, along with a new diff cover & lubelocker gasket. I made the rear practically bulletproof. Initial driving, we both feel a difference in pickup & acceleration & neither of us were expecting it. This is quality gear oil.
This is the only oil/ lube for the Tranfer case besides Engine oil that Amsoil has for the 3rd Generation Honda Pilot Touring/Elite 9 speed . I hope they come out with a Transmission 3.1 Honda Spec Transmission oil and Dual pump II Differential oil. That would be awesome 👌
Changed the PTU, Differential fluids and did a flush on the transmission shifts so much better now.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Works great
By 
JAMES, 
a 
Verified Buyer 
on 
December 28, 2024
This stuff is just what advertised, it is extreme, this with slip lock and a very noisy high mileage heavy duty rear-end guietened down and stop chattering
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Great stuff
By 
G1, 
a 
Verified Buyer 
on 
December 23, 2024
Worked great, easily filled the front diff of my 04 Silverado and it came with a sticker, which is arguably the best part. Would recommend!
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