To choose water for alternative fuel can increase your gas mileage, it can even double your gas mileage. By using water along with gasoline will increase your miles per gallon and make your car run even quieter. It also has a lot less emissions so your car run a lot cleaner. To day we need to run as clean as possible to help clean up our plant. To go green is the worlds problem and this is one way we can help. If every car in America would do this it would make a lot of difference in the air and the global warming.