I guess from what you read above, Skynard Man, the overall concern is long term storage, non-use (over the winter months, I guess for those of us that don't fly in 20 degree winter weather[:@][:@] is to use a little after run oil to make sure the water (moisture.. alcohol which is the primary ingredient of our glow fuel tends to absorb water) is offset by something that will coat the parts and prevent any rust from forming. During the short times between flights in the flying season, what has been recommended should work just fine. Primary, just drain the fuel and run it dry at the end of the day. I guess I would still add a couple drops of after run oil, what can it hurt.