Thousands of people have already used courses like water 4 gas to convert their cars into water burning hybrids. So, do any of these books actually for real, or are they just outright scams? If you don’t research the subject, you’ll probably automatically assume that the whole thing is a scam - and you would actually be wrong. Running your car on water is totally for real. All you need is to look at the results people are getting and see for yourself. And if you want more information, just look at US patents of the technology.