Can water be used as fuel for cars? This is a very common question many people have. The answer, surprisingly, is yes. Water is a VERY powerful fuel, although it can’t be used all by itself to power a car - you will always need some gas to go with it. The good news is that it is very easy to make your car a water burning hybrid. All you need is a good quality guide like Water Car Pro. You can get any guide you want, but Water Car Pro is definitely (by far) my highest recommendation and the one I would recommend using the most.