I'm not a pro mechanic, but my guess is...the folks in MN who do freeze up engines have their probs show up in the form of blown head gaskets causing coolant leaking into the oil slowly...nothing real obvious..but destroys the engine. Along the roadside, it's hard to tell a stuck thermostat from frozen block. By the time I get to folks, they have already topped off the radiator with fresh stuff but the engine wont run. I have never seen a cracked block, but have seen a number of cylinder head related probs. The 60/40 mix of anti freeze keeps life moving pretty good "up north".
Stay warm and send us the snow...nothing worse than cold without snow to play on!
