I like your "drain'er dry" theory. Makes perfect sense. Better, cheaper and easier by far. That said, what is MerCruiser's theory of adding AF mix in colder climates? Also a quick question as to why the plugs aren't left out for the winter? How about condesate during heating and cooling if left empty/dry. Could this build up if the plugs are not left out. Looking forward to your thoughts......... you seem to believe in your way.
