I am buying a 2500HD 4WD w/Allison next weekend. This will be my first diesel. I am looking for advice on things I need to do to the truck since I am moving to Alaska, Elmendorf AFB. I am confused with all the talk about the fuel filters and different types of heating. I know very little about the engine block heater and nothing about oil pan heaters or fuel heaters. Can someone please help, I would greatly appreciate it.