Reply #23: I can pontificate on that one too!! [View All]

[MindPilot]

Adding water to the fuel mixture--not to the fuel itself--can increase performance and was used in aircraft and racing applications. The idea is that water, containing hydrogen and oxygen, two substances that seriously aid combustion will augment the energy stored in the fuel.

The problem is the systems don't give enough performance increase to justify their weight and complexity.

And in a regular car engine, the combustion temperatures never get high enough to break the bond between the hydrogen and oxygen, so literally all you're doing is running water through your engine.