I was all over west Germany on and off last winter and id say a typical winterization would do fine (fluids, tires, etc) unless its just going to be sitting. It was cold as hell but I wouldnt say more extreme that the winters where im at now here in Va.
The three most common expressions (or famous last words) in aviation are:
- "Why is it doing that?",
- "Where are we?"
- and "Oh Sh!t!"