The argument that gasoline cannot be used in a glow (nitro) engine is utter BOGUS. Guys have converted glow engines to run on gas for years if not decades.

Most glow engines aren't as highly compressed as one would think. Most of mine are 8.5:1-11:1. Nothing out of the ordinary here, 90-93 octane would behave fine. Even 87 would probably be okay. True, gasoline burns faster than alcohol, but is more explosive than alcohol. Glow fuel is safer than gasoline in most cases. The problem with running an ABC engine on gasoline is the combustion temperature. Gasoline burns much hotter than methanol, so your RTR engine that runs 250-280*F will likely run 350*F or higher which does not bode well with the bearings that come loose from the crankcase around 330-350*F.

The bonus with gasoline is the stoichiometric ratio is 14.7:1 whereas methanol is about 6.4:1 and ethanol being 9:1. Nitromethane is 1.7:1. This means you get a lot better fuel economy with gasoline than methanol or methanol/nitro mixes.

If someone wanted to save some money on fuel, mixing 2 parts gasoline to 1 part glow fuel and adding a little extra oil will run well on a glow plug, but you still have the higher heat to address.