With modern computers the combustion process can be controlled to such a degree that this is a non-issue, but with that said, see my post above on water methano

With modern computers the combustion process can be controlled to such a degree that this is a non-issue, but with that said, see my post above on water methanol mixture, incomplete combustion can be solved by the addition of methanol. As well there is already a ready source of methanol/water mix at every gas station as that is the formula for windshield wiper fluid.