That's what we pay for in our ethanol laced gas now. Water and alcohol.Later we used the same principle to inject a water/alcohol mixture into the intakes of the engines with the beginnings of the polution control systems. That would smooth out the idle of most of them.
We also injected water/alcohol into the intakes of turbocharged engines to cool the intake charge and get the advantage of having water vapor in the intake flow. Water getting into the fuel/air charge had the effect of cooling the combustion, preventing ping/knock and you gained some more push on the piston because water expands 17 times when converted to steam. Every little bit of expansion in the cyl. helps.
Not to steal the thread, but simply as a observation, it also works well in air tools to keep 'em clean and water free.It, MMO, must be a great product as it has been on the market since 1923. A lot of it is sold here at the AutoZone and Dollar General.