Thanks Trevor. No, the
Thanks Trevor. No, the manual page (hard to see) does not tell me what type of coolant to buy locally (as in Walmart, Autozone, whatever) and the dealership suggested tap water. Not DI water, not distilled. Hard to believe. Towing is free with either AAA or the BMW Roadside Assistance. In my youth when I drove older cars, due to necessity, I did exactly what you do. I will post an update if I can. Your comment is much appreciated.