Very interesting information and it makes a lot of sense to all of us who have thrown props in the air and damaged more than a few spinners because of YS kick back.

I have been thinking aabout the oil percentage, but I can not see how using a spark plug would allow to reduce the oil content, in fact being able to run with a leaner mixture will reduce the amount of oil entering the engine. On gas engines I understand that you can use a much lower oil content because of the lubricant properties of gasoline (not the case with methanol). Anybody can help explain this?

Thank you

Mundo