lower unit lube

HighTrim

Supreme Mariner
Joined
Jun 21, 2007
Messages
10,486
Re: lower unit lube

What kind of gearcase is that? Im assuming mechanical, but is it selectric or??

If mechanical, use an 85-90 gear oil, you need the additives for water intrusion. If it is electric shift, you need the premium blend type C oil. Be sure to change the drain and vent screw gaskets while you are at it.
 
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