- www.DiscoverHydrogen.com - Learn how you can convert your car into a Hydrogen Hybrid for less than $100 and SAVE UP TO 70% on fuel costs, while cutting emissions almost by HALF. Water fuel conversion plans show you how to build and install your own Hydrogen Generator system, producing Hydrogen On-Demand, as you need it. This technology has proven to increase gas mileage as much as 150% on both gasoline and diesel engine vehicles. Find The Best "Do It Yourself" Instructions at our site.