I dont mean this to rub salt in the wound, but this needs to be a reminder to many, that marine/RV antifreeze is not meant to diluted. You cant run this stuff through a drive train thats stiff full of lake water and it protect against freezing.
Do drive this point home even deeper, those reading nead to realize that the state of NC has some real mild winters compared to other parts of the country.
This is not a v-drive v's DD, its not a ford v's chevy blosk thing, its not a PCM, Merc or Indmar thing. Its a dont dilute marine AF. drain the entire system, period! Then if you feel the need, induce some pink antifreeze.