What they use water to put out fires, how can you use it to burn in an engine for fuel. But did you ever hear of hydrogen, this gas can be compressed and used as and explosive. Hydrogen is a gas that is found in water you know h2o water. Well the gas that is found in water is HHO gas and when used right, can be used to power your car. It sounds silly but it can be made to work as fuel. And water is not that expensive, a haft a gallon can run for a month. Learn More