On Jan 27, 2011, at 3:24 AM, Yigit Turgut wrote: > If you can explain why you think that way Splitting water using electrolysis is not particularly efficient. For =20 any amount of energy N that you put into it, you might get enough =20 Hydrogen and oxygen out to produce 0.7*N of energy when you burn it. =20 Except that that process wouldn't be 100% efficient either, especially =20 by the time it goes through your car motor/alternator/etc. It can't =20 even fuel itself, much less add efficiency to the propulsion of the car. Claiming that you can improve mileage overall is like saying you'll =20 use a generator to electrolyze water, then use the hydrogen and oxygen =20 produced to run the generator. Classic perpetual motion. Except in this case they additionally claim that there will be extra =20 energy left over to help move the car. I don't know enough about cars to explain the mechanisms by which you =20 might fool yourself into believing that it is working. Running down =20 the battery is one possibility, I guess (for rather short measurement =20 cycles!) Why would you possibly believe that this could work? You might as =20 well throw in some nickel and claim that its doing "cold fusion." BillW --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .