Water4gas

I'm sorry this is basic junior high chemistry. It simply has to take more energy to crack the water molucule than you would get in burning it. This will do nothing for your mileage. The math on mileage is really quite simple. You can only get a certain amount of energy out of each gallon of gas. The way to improve your mileage is to reduce the energy requirements of you car. How do you do that make it lighter and give it less power. Why do you think scooters get 100 MPG. Light with small motors that won't propel you over 25 MPH. Cars today are heavier and we demand better responsiveness when we drive. Your typical family sedan has 200 horsepower and weighs around 4000 lbs. You just aren't going to get 50 MPG from that.