Can a regular gasoline engine car run on vegetable oil?
No. Gasoline engines use a spark plug to create a spark. Each spark ignites a tiny amount of gasoline in the fuel chamber, creating very small explosions which run the engine. Neither diesel fuel, nor vegetable oil will combust under those circumstances – it is not as flammable as gasoline. It will however, combust under great pressure – which is how a diesel engine works. The oil is squeezed at a very high compression, in order to create the same kind of mini-explosions.
