Originally Posted by Low Note

Hi Midwest,
Didn't know you lived in Minnesota. I was in Minneapolis in January a few years ago and thought that I would die. I've got some friends in the Minnesota Orchestra and they tell me stories about having to use electric block heaters in their cars. Wow. I lived at Interlochen, Michigan for several years, but never got nearly as bleak and cold as Minneapolis. But since I do drive back up to northern Michigan several times a year, perhaps your suggestion about nitrogen is food for thought. I drove up there last February when it was 65 here in DC and 20 at Interlochen, and my nitrogen filled Mercedes tires only changed by 1 psi. But with run flats, maybe this is all moot?