2009 Tahoe Q5i, changing gear lube and what type

DVANECK

Cadet
Thread starter
Joined
Aug 9, 2024
Messages
13
Hello Everyone, I'm getting ready to winterize my 2009 Tahoe Q5I, and I need to know what lube to use for my Powerhead, it has a mercury Alpha 1 , and have looked up how to change it, but I want to make sure I use what is required for the unit.
Thank You
Don
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,539
Ayuh,..... Of course the recommended is Mercruiser/ Quicksilver Hi-performance gear lube,.....
I use Pennzoil full-syn 75W-90, which is the same, without the colored dye,....
 
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