There are many books on the Internet, but one of the ones that I’m going to buy is the water to gas book.  I would like to save money on my fuel bills as the price of fuel is going up every day. ‘The water4gas reviews very good, and this encouraged me to buy the book.  Apparently the book also gives listings of where to buy the fuel cells and how to make your own fuel cells.  I’m going to fit the system, or my old car, which I no longer use.  Just in case it marks up the engine.