A green car, not the color of course, who even thinks of the color when we say the word green anymore, can save the planet and your wallet. We all think of environment when we say green. We have all heard about these hydrogen fuel cells. Well did you know that you can make one in your own home that will actually make your car run better and get better gas mileage. Once you learn how to run a car on water you will notice that your engine runs quieter and smoother than on gas alone. You will also notice the difference at the pump.