Here's an idea - maybe I will stop by an MB dealer or Auto Shop (any recommendations on who has Zerex G-05?) and pick up the MB or Zerex coolant and when I go to the shop, I'll ask them to change it over - shouldn't be a big deal since I am paying for the proper coolant, right? I don't want to make a huge issue over it, but I just want to be safe.

Oh - how much coolant will I need to buy???