"Ringmaster" wrote in message
ups.com...
I have a Yanmar 2GM and I just buy a top quality 30W regular oil which
is what Yanmar recomends. I also use a Yanmar filter but have also
used FRAM.

Is 30W for the engine?
Here's what the paperwork I have says:

Selection of Engine Lube Oil: API: CD, SAE Viscosity: 15W40
Selection of Oil for Marine Gear: SAE Viscosity: 30
Sail Drive: Viscosity: 90 or 80W90

Scout