Water4Gas step by step system is surprisingly simple to install and very cheap compared to buying a hybrid vehicle. Make your gas-guzzler into a clean hybrid machine! Water4Gas is an informational product (i.e. In a nutshell, with electricity from your cars battery it separates water into a gas called HHO which has 300% more power than gasoline. Water4Gas has proved that its conversion will never harm a vehicle as long as the correct steps are followed.