I drive 270 miles from Eagle River to Clear, Alaska almost every week. I try to set my truck up for the interior of Alaska as temperatures may get to the extremes. I change my oil to 5w30 synthetic, remix my coolant to 2/3 antifreeze - 1/3 water (approx -80 F), add an electric pan heater on the crankcase, use electric battery blankets, use an interior electric heater, and use synthetic oils in differentials, transmission, and transfer case. I carry a complete extra set of extreme cold weather clothing, a heavy duty sleeping bag, and a bunch of munchys. I keep a lot of tools in the truck as well as tow chains, tow straps, jumper cables, etc. I also carry a spare fuel filter. Some of my friends laugh at me fo being so cautious but just in case. I'm very cautious about the fuel I buy. It is mandantory that I get # 1. We tried the blended # 2 a few years ago but it just doesn't hack it at -60 F. I also have studded tires and four Light Force auxillary lights to help me see in the winter darkness.