Now YOU are completely mistaken. All gasoline and diesel engines, even gas turbines, are steam engines at the same time that they are gasoline or diesel engines. You are completely missing it. You better go back to school.
Water is produced in an internal combustion engine during the ignition phase, and of course, instantly turns to steam due to the heat. But the percentage is small compared to other gases produced such as nitrogen.
The steam is actually unwanted because inside a cold exhaust pipe the steam condenses back into water and corrodes the steel. Which is why cars that do more short journeys, wear out their exhaust pipes quicker.
To call an internal combustion engine "a steam engine" is foolish, just another one of your childish word definition twisting games. Small amount of carbon monoxide are produced as well, shall we call them carbon monoxide engines?
Embarrassingly for yourself steam engines are actually external combustion engines. But I'm sure you'll find a way to lie your way around that.
See? I'm not laughing. I respect that you are a fuzzy, warm person... maybe even fluffier.
