Is there a motor that can use diesel and regular gas?

Answer 1

even know the mechanism is pretty much the same a diesel fuel has a lower ignition temperature than gasoline, allowing combustion to occur simply by compressing the air/fuel mixture. Gasoline engines require a spark plug to ignite the fuel. Too much gasoline will not allow the engine to work efficiently and quite possibly not at all.

Also, diesel engines use an injector pump to pressurize the diesel so it will form a fine mist when pushed through the injectors. These pumps require the lubrication of diesel to continue to work. Excess gasoline will cause failure in the injector pump and damage the injectors. this is why there are non dual fuel system engines