You can't beat the laws of thermodynamics. Simply cannot be done. Generation of hydrogen by electrolysis consumes more energy than it produces-PERIOD!
A car makes more electricity then it needs. That is wasted energy. If you could recycle that surplus into fuel the argument that it would be ineficient loses its value. After all it would be free energy.. Or am i missing something.
Not to start a flame war or something, but just wondering if that would make a difference at all.
Any extra would be better off going straight back into the battery, you don't see electirc/hybrid cars using turning their energy generated from braking into hydrogen.
I don't even know if a car produces waste electricity, if it does what does it do with the energy now? It can't just disappear.
If there's anything I'd say it would be very negligible, the car scales up and down electricity generation according to demand just fine.
Anyway, whatever his name is doesn't believe that crap, he wouldn't be trying to peddle it if he did and his number are clearly pulled out of his arse.
Can we please just delete the spam.
Jesus christ it's got nothing to do with this thread even, is spam fine and dandy.
Don't quote it either.
And the same with that other pool loser
HANDY HINT. IF THERE IS EVER ELECTRISITY -> HYDROGEN IN A PRODUCT IT IS A SCAM
The only use of hydrogen is as a gaseous battery. It is not a fuel.
:D 
. what happened?