I have a friend who's looking at buying a 3500, but he says it will be the wifes rig and she will be driving it daily 2 miles back and forth to work. Some of it will be during northern US winters. Will the pickup hold up to that kind of driving? I told him I thought he might have to do more frequent oil changes and it is certainly best to always bring the rig up to full operating temp, but I don't know if it will necessarily be harmed. What do you guys think? I'm a long way away from knowing anything about this subject. Thanks.