I think that gasoline produces a higher temp when burned than methanol. This could be a problem if the engine were broken in first as a glow engine, especially if it is of ABC design. The glow version would not reach the same operating temp as the gasoline version and the wear chariteristics would be different. When the fuel is then switched to gasoline, the expansion of the parts would be greater and may result in a poor piston/cly fit.

I beleive this is correct?