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

From the spec sheet, it looks like pure naphtha, which is probably closer to the stuff they ran on back in the day than either Coleman or zippo. In any case, there doesn’t seem to ba any reason why not. No additives, it’s naphtha. The engine is a low compression engine with a piston ring known to be fine with such, and unlike modern engines, no plastic nonsense except the fuel line, easily replaced if need be.