Had a science teacher back in middle school that claimed to have a buddy that "designed" a way to make gas engines more efficient by running the gas line over the engine to warm it up before entering the engine. Said that GM bought the "design" with no patent, and hid it away so that it wouldn't get out. Problem is, that's not how BTUs work and GM would obviously know that. Also that's a good way to destroy your engine by misfiring.
I knew a kid at boarding school who claimed his dad worked at BMW and was looking into this. Years later Im working at BMW in the cafeteria and I meet the kid’s dad. He did in fact look into hydrolysis for making hydrogen for cars on paper but couldn’t figure out how to not make the car explode in an accident.
Wouldn't the hydrolysis of the water take energy that required fuel though? The claim seemed to be more that the water was the fuel so to speak, as in the same way that petrol is in current combustion engines.