Moisture (humidity) is the big problem in our area. A couple of weeks ago, I opened the garage door and in less than 5 minutes there was condensation all over the truck. My biggest concern was that the gauge clusters fogged up. Took it out and drove it around for a few miles - the cab got nice and toasty warm and the gauges cleared. I suppose the lesson here is don't open the garage door unless you are going to drive the truck.
