NSTDA says reports of mechanic using water to run his car are wrong

The technique has been used by car racers for a long time to add to the speed of their cars, the NSTDA added.

The water needs to be in a separate container from the oil tank and the water needs to be in fine mists into the intake air or directly into the engine cylinders.

Water has a high heat of vaporisation, meaning it absorbs a lot of heat when it turns from liquid to vapour. In the engine, this cooling effect lowers the intake air temperature, which allows for a denser air charge. Denser air means more oxygen, which can lead to more complete combustion and potentially higher efficiency.