Originally Posted by edgeaholic (tm)
extreme? try living in a state where it can go from -50 windchills to +100 in less than 5 months. (thats a 150 degree change) welcome to the midwest. extreme? all you've got is some 75-110 degree heat year round.
Windchill is only a reference to how much heat is taken away from your body to compare the effect against ambient temperature. It doesn't affect oil. If you were to measure the temperature of oil sitting in conditions equivalent to -50º, the temperature of the oil would be the same as the air temperature.
Cold temperatures are hard on engine wear. Hot temperatures are hard on the oil.