i ‘ve heard about that water as an alternative fuel and it can run a car, is this for real or a hoax?

threre’s a website that sell to how to make car run on water ??,is it a scam just to rip people ?.is anybody tried it and did it work?tell me coz im going to try it to my car .

I have seen ads for auto fuel, running on water. Is this for real? Or is it another hoax?

Brown’s gas, Oxy-Hydrogen Hoax or Real?

Anyone have experience with it in cars? How did it work for you? This is costing me 5 points, so only serious answers! LOL!