Take in from a fellow Minnesotan -- you'll be fine with the Mobil 1 0W or 5W. I've used it for years in my cars. If 0W-40 is available (I haven't seen it around here and you can't order it directly from the Mobil-1 e-store), this is probably the better choice.
By the way, welcome to Minnesota. Now, about those dedicated winter tires that you WILL have to get......