Ron wasn’t riding on the street, where Pep Boys oil might work okay. He was running his 250cc Kawasaki A1R in regional roadraces in the US and Canada. These were races in which oils intended for the lower-performance engines of chain saws, mowers, or outboards had been found to whisker plugs, stick rings, or seize pistons. It wasn’t a matter of opinion or of being different; it was a matter of trial and error. Of experience.