have been using this product for years and I'm very happy with this gear lube. It says what it supposed to do easy shifting and no ware on the parts even if water does penetrate the system. when I drain the lower unit there is no metal filings on the drain plug that tells me it is doing its job.
Use this in my Yamaha F115, about 100 hours per season. When replacing the marine gear lube in the fall, it comes out yellow as I had just put it in !
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Gear Lube
By 
ANTHONY, 
a 
Verified Buyer 
from 
Port Colborne Ontario Canada 
on 
November 13, 2024
I use this product in my 75hp Yamaha bottom end
Keeps the bearings and gears in great shape and shifting smoothly
I have recommended it to all my boating friends
The best that any out drive and lower drive any marine engine could get, would be good to have 1 liter bottles instead of 1 quart( as often you need 2 litres, and i have to buy 3 instead of 2 to top off)
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Best gear oil
By 
BRIAN, 
a 
Verified Buyer 
on 
October 29, 2024
I have used in my outboard leg for many years with 0 problems.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
My go to marine gear lube!
By 
CRAIG, 
a 
Verified Buyer 
on 
October 17, 2024
I have 2 boats and use this in both of them. It has been over 10 years since I began using Amsoil in them and they both run well, and have not shown signs of wear.
i do like the amsoil lower unit fluid. It’s seemed to work well. when i drain out the old fluid at the end of the season, it still looks new. The easy packs could be resigned somehow. it’s hard to get the last little bit out of the bags.
This last summer was the first year with 100% Amsoil in the lower unit, I had been putting the last .2 qt in from a bottle of Lucas that met the required spec. This was also the first year I had zero shifting issues and it ran flawlessly all while sitting in wet slip for 6 months
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Gear lube
By 
GEORGE, 
a 
Verified Buyer 
on 
October 24, 2023
Have used this product in the lower units since new. 19 years. Never had a failure. Great product.
Put this in my buddies Mercury 115 the last three years and it’s cleaning up what ever was in it when he bought it used.
My Yamahas only see Amsoil gear oil and it looks good each year for the change before winter sets in
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