Duramax Fourth Generation: 2007.5-2010 (LMM)
I only use my 2007.5 3500 (160,000 miles) for hauling my overhead camper in the summer. With winter approaching I'm getting ready to put it into outdoor storage for the next 6 months or so. This will be in Boise, ID so there will be some snow, and temps will likely be between 10-40 degrees most...