[jidar]

Originally Posted by Bwana

I wonder if one of these is worth a damn?

http://www.runyourcarwithwater.com/?hop=bmt2005

Probably not. Every few years some investor bilks a bunch of people out of money by selling electrolysis systems and trying to make engines run on hydrogen. It works but it's less efficient than gasoline by a wide margin and unreliable. Several times people selling this stuff have been sued or gone to jail for fraud.