The straight 30 W is the best bet all around hands down. I would not use
multigrade oil in any engine. The main thing is to change every 3,000
miles.

--
Steve
=======================
Remove the not dot from my address to abuse my email box
"alex" wrote in message
...
Past couple of years I've been pouring straight SAE30 into my "77 ford
302 gasoline engine. It's was coming from a barrel which I laid my
hands on several years ago. The label on the barrel actually says:
"Shell High performance diesel engine oil X30"

I've never actually experienced any problems with this oil. As a
matter of fact, I've never experienced any problems with this engine
whatsoever.
But now the bottom of the barrel is showing and so I have to go
shopping for oil again.
Any suggestions for a suitable oil type or brand ? Or should I go for
the same old stuff again.

Since I only use the boat during the summer I never really saw the
point in using a multigrade oil.