A running petrol or diesel engine does Molecular Nuclear Fusion. Oxidising the fuel TAKES IN energy. The Nuclear Fusion isd massively energetic.
We know this, because a running car engines gives off light and X-rays from the engine.
So to increase power, we can increase the pressure – which means we suck in more fuel. Or we can Ti plate the engine
So a $200 titanium plate to the engine block and cylinders halves the petrol burn: though we may wish to tweak the fuel injection/carburettor system,
So for the life of the car, our fuel burn is halved. Or engine power doubled!