"D&LBusch" wrote in message
...
I have a Mercruiser 5.7 with 450 hours built in 1988. I'm about to lay it
up for the season (northeast). Does anyone have a suggestion for engine
oil? I'm inclined to use 10W30 Dino oil which is what I use in my car.
The boat is new to me so I don't have a "what did you use last year" to go
by. Any ideas would be appreciated? Thanks, David


IIRC marine engines of that vintage call for straight 30 weight.
Maybe someone more knowledgeable will confirm or correct.

Eisboch