Remember late '70's in S Dakota stationed at airbase outside town. Those were some cold a$$ winters. Below zero before windchill, and minus 45 and more with. Lived in a trailer off base, and it got so cold even the toilet froze, I ****, kid you not. My '71 had the thermostat froze shut, had to take it out, then place a full piece of cardboard over radiator for it to get heat. Ended up cutting about a 9 inch circle so it would go to middle on the gauge. LOL. But I was a teenager still, overcame that and plenty more. Just wisdom for the ages. LOL