Can I run the Rotapower engine on different fuels, and switch easily between fuel types?
Fuel systems are specific to the fuel type used, specifically the fuel pressure, fuel injector and pulse width of the injection. It is possible to adjust for very similar fuels like alcohol and gasoline by adjusting the pulse width electronically from the dash. Natural gas will require a different injector but could probably use the same controller. Diesel will require its own system.