Do you think this fuel would contain more chemical energy or be more flammable/explosive than gasoline?
I discussed this concept recently on another thread: http://www.freerepublic.com/focus/f-news/1951397/posts?page=7#7
In fact, hydrogen gas is one of the MOST dangerous explosive gases. Unlike gasoline vapor, which is explosive in air at concentrations of 1.4% to 7.6%, Hydrogen is explosive from 4% to 75.0%