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					Originally Posted by Geekie1
					
				 
				Hi Builder, 
 
There is a product called "Seallube" which when added to LU oil swells the seals stopping the water intrusion into the LU. *If the seals are really bad, Seallube may not work, but it's worth a try. *Also, full synthetic lower unit oil can take alot more water than standard 90 hypoid LU oil before breaking down. *My Yamaha 150 LU takes about 1.5 quarts of oil and I add 2 oz of Seal Lube to it when I change it. *I bought the Seallube on Ebay. *One of the V20 gurus (I forget which one) swears by Seallube. *! 
 
Geek 
			
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 That Seal Lube is the stuff use it on every lower unit change and in my oil changes on my cars never have a leak in anything i ever used it in.