Home › Forum › Ask A Member › Oil ratio for a Scott Atwater 16 › Re: Oil ratio for a Scott Atwater 16
Hey bill……I’ll say it again…..Running an antique/vintage engine on a lean oil ratio is like putting lipstick on a pig. "huh?, but today’s lipstick is so much better!"
What is the piston material? Is it the modern, harder than Hell, hi-silicon material used in later engines designed to run with lean oil ratios? Did the Scott engineers change the shape of the piston from round to semi-elliptical or the length of the skirt or install oil retention grooves or change the rod length and piston pin location to lessen the skirt loads due to crankshaft rotation to combat premature skirt wear for lean ratios? Ever think about that?
It’s not just "is it a roller bearing or a bushing engine" that determines the long term effects of a lean oil ratio.
At least you have plenty of engines to play with!!