[gone-ot]

..it's really just a HALF-ASS problem:

1) FUEL - adding hydrogen to the ICE engine does work; but, obviously involves energy from a second source, the hydrogen.

2) EFFICIENCY - attempting to "create" the hydrogen gas from water, on-the-fly, while driving "consumes" far more energy (ie: second energy source) than the slight increase in ICE efficiency gained while using the gasoline+hydrogen combination.

3) So, HALF of the problem is valid, ie: #1. But, the other HALF (#2) of "riding" this DONKEY (ie: "biblical" Ass) is that you can't make hydrogen gas efficiently enough to overcome it's energy cost of creation while driving.