go to local merc dealer
get mercruiser sterndrive oil filter for GM V-8, its the same as the 4 Cyl
25W-40 oil, or SAE 30
quicksilver high performance gear lube is the ONLY lube i would put in an alpha drive
how much gear lube will i need?
what size impeller will I need?
Can I just buy impeller or do I have to have the whole repair kit with seals, etc?