Whats Better About Half Water Half Gas?

The most recent version of the now popular DIY hydrogen car kits is called Half Water Half Gas, and it was developed by a man called Howard Hauk. The main motivation for people to use these guides and convert their car to run on water and gasoline as a hybrid is that they can save anywhere from 20-60% on fuel costs. Just the economic potential of using this technology is great, not to mention the really positive effect that it could have on the environment.So why is Half Water Half Gas any diff