Well, i mean, think about it. Water = H2O (obviously) Have some machine or somerhing hack the H off of there.

H20 have two 465 kJ/mol for each H-O bond. H2 have 432 kJ/mol bond O2 have 493 kJ/mol bond

So, when breaking 2H20 -> 2H2 + O2 you have to make from 2 * 2 * 465 kJ/mol of water 2 * 432 + 493 kJ/mol of H2 and O2 To do it, you have to add from somewhere 503 kJ for breaking 2 moles of water into 3 moles of detonating gas. Or, considering 1 mol is 22.4 liter of gas, 7.485 kJ/l or ~2 Wh per liter of gaseous fuel.

When you burn that hydrogen/oxygen mix, the process is reverted and you will get same 2 Wh/l of energy.

So, any method of hacking H from water, will demand at least 2 Wh per liter of gaseous fuel. Then, burning it in engine you will get same 2Wh per liter. What is the point to add senseless process of splitting water into hydrogen and oxygen to burn them later getting same spent 2 Wh/l ?

And that is without accounting for losses in splitting and burning. Also, mix of H2 and O2 is higly flammable and even small amount could create a total mess in your fuel system.

If Meyer somehow found a way to break the bonds with lower energy, than there are no need for any fuel at all. You break the water with, say, 1Wh/l then burn it in engine making 2Wh/l and use 1 Wh/l for moving and other 1 Wh/l to split the water that created while burning. There will be no need to refuel the car with water at all.

So, hardly that was what he did.

May be Meyer invention was adding water droplets to the fuel mix. It really works and allow to get more power from same amount of fuel. To the expansion of burning fuel added expansion of boiling water. But that can't be named "running car on water" and was known long before Meyer.

So, we don't know what really was Meyer invention and was it at all.

AFAIK, for over 20 years nobody replicated Meyer gas generator. Every time experimenter get just regular electrolisys, and not very effective. Using regular electrolisys have no sense as described above.

If you know a story of successful replication (getting flammable gas from water with less than 2 Wh/l), with exact and thorough description of differences from obviously non-working Meyer patent that prevented it from working, please share with class.