My 2700 hour golf cart's motor is aptly named Old Smokey.
Has anybody used some snake oil that actually stopped all/part/some of this smoking? I tried a 30 year old bottle of Slick 50 - no change. I run a semi-synthetic 15w-40 oil (Frontier, same industrial oil I run in my diesels) but there has been no difference between this and using el cheapo 10-30.
I'm sure the bore is hour glassed and it wouldn't surprise me to find the blow-by is using the valve guides for a direct oil injection port.
But oil is cheaper than a motor, and it doesn't foul the plug too badly... and besides I spent all my play money for the year already.