Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

I would not use pump gas in any of my model engines. In addition to ethanol (very undesirable) pump gas contains a littany of assorted poisons designed to be pushed through a catalytic converter at 1400 to 1800 degrees F.  My smaller hit and miss gas engines dont exceed 110 F. My largers models are no warmer than 165 and that is with no coolant.