RE: Running your carb dry?gas engine
I would run the engine dry of the flight fuel and then fill it with Coleman fuel at the desired oil mix and run it untill all elements are saturated with the Coleman fuel mix. This eliminates the alcohol problem and keeps the carb wet with friendly fuel. Also Coleman does not go stale, it stores indefinitely with no degradation. Just do what you think best, though, my Zenoah G23 with EI runs great on the Coleman and Pennzoil at 32:1, so I don't need to switch over to this mix at day/season end.