I start my truck up at least once every week and let it run until the heater blows warm air. Keeps things lubed up and moving. On sunny days in the winter I'll drive it around for a few miles. I get ALOT of rain around here. If I let it sit for too long without running it, I have to clean up the points to get it started. It rains so much here at times that white fuzzy mold will grow under the hood, on everything. It's a constant battle with condensation.
