I have a 1952 Elgin 7.5 HP with a neutral shift lower unit. My recollection as a kid is that we used grease rather than 90 weight oil in the lower unit.
Hopefully some of the older geezer guys on here can help you with that antique motor question. All I've ever used was the 90 weight gear oil. Good Luck!
I have a 1952 Elgin 7.5 HP with a neutral shift lower unit. My recollection as a kid is that we used grease rather than 90 weight oil in the lower unit.
Yer right, outboard motor lower unit grease it is/was. The stuff is no longer made, so most people use Lubriplate 105 "Motor Assembly Grease" Comes in a squeeze tube. NAPA Auto Parts has it.