Put the stuff in my 01 3500 Silverado with an 8.1 Allison transmission transmission has never shipped it better I regularly keep up on my services and this time I went with AMSOIL. Nothing beats it.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Stopped my transmission from shuddering
By 
MICHAEL, 
a 
Verified Buyer 
on 
December 04, 2025
Great product
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Highly recommend
By 
TYLER, 
a 
Verified Buyer 
from 
Phoenix az  
on 
December 02, 2025
This was my first time using any amsoil products and I got the ULV transmission fluid. It has a noticeable difference on shifting feel, it made my van drive better and downshift smoother. I will be using amsoil for all my lubricants and considering I have a mechanic business I will be ordering a decent amount fluids. I recommend everyone use Amsoil products!
Great replacement for Nissan Matic J. At near 297,000 miles, the transmission is shifting like butter. Very happy with the outcome of using this oil for the long run.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Amazing Product
By 
ERIC, 
a 
Verified Buyer 
on 
November 22, 2025
Dealership wanted $200 for fluids for my transfer case. Amsoil cost me $75, shipped to my house, and it comes in the convenient squeeze pouches. Literally saves you time and money, can't recommend enough.
If you're running a ZF 9-speed transmission, AMSOIL Signature Series ATF (blue cap) is a fantastic upgrade.
If you're hesitant to move away from OEM fluid, it's perfectly fine to stick with it. But if you're on the fence — especially if you're tired of rough or inconsistent shifting — this fluid is worth the switch. Not only did it make my vehicle run smoother and shift more confidently, but I trust it to provide long-term protection thanks to its superior formulation.
Swapped from oem ulv to this fluid and the transmission seems to be shifting better. Excited to see how long the fluid holds up. Since the drain and fill I have put on 14,500 miles on the fluid.
I recently used this fluid in a 2014 Audi SQ5 and it’s about the same price as using the ZF fluid and it feels like the transmission shifts a little smoother after the fluid change. I need to pull some more fluid out to get all the fluid change to AMSOIL as I was only able to get out about 4 1/2 quarts for the filter and fluid change. I can’t speak on the fuel efficiency as this car is a stage 2+ tuned with pulley’s full exhaust ported blower and makes about 400 to the wheels so needless to say my foot is always in the gas, but I feel a little bit more confident, knowing that the fluid in the transmission is now the best. This car gets driven very hard and lots of launches so the Transmission definitely needs all the help it can get!
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Works great!
By 
CALEB, 
a 
Verified Buyer 
on 
November 06, 2025
smooth Shifting
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Works great in gm 10l80
By 
CALEB, 
a 
Verified Buyer 
on 
November 06, 2025
I have and will continue to use AMSOIL products.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
22 ford transit-350
By 
morty, 
a 
Verified Buyer 
on 
November 05, 2025
Bought to help the famous junk ford/chevy 10speed trans. Replaced 2gallons and it definitely helps, shifts better but it would be way better if it was completely changed out. Little pricey to do a flush with amsoil. Definitely happy with amsoil and will continue to keep using it
Did a full service on my 7.3 f350. Drain and fill the trans fluid with Amsoil. shifts smooth and confidently. 337k miles going strong. Drives like it's got 50k
My 10L1000 behind my 2020 Duramax shifts so much smoother with this with this fluid vs the factory recommend.
I really did not expect such a change.
Its awesome!
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