I have never heard this before, boy you hear new stuff all the time. Then if we flew on the sun they would last forever!!!!!!

With the temps our engines run at , they even have to heat up a lot even when its 80 degrees out. Don't think a little colder is going to make much difference, engines are going to wear out. I think a lean run or cheap fuel would be worse than cold weather.
enjoy what you got, they make new engines everyday!!!!!