those of you who have traveled in the midwest and western states will know preparedness. these trucks can be fixed on the side of the road barring major mechanical failure. I carry a toolbox full of spares because I can. pretty much most everything has been covered plus 10 gallons on water 6 gallons of oil and 20 gallons of diesel fuel. a "Magic siphon" for the diesel, couple rolls of paper towels both the shop and home type. dishwashing soap, catch basin for the washwater, and a couple of flats of individually bottled drinking water.
I also carry 100ft of rappelling rope, rappelling harness fitted for my fat ass, axe, pickaxe, shovel, manure shovel, 20lbs of oil absorbent, a heavy duty pushbroom, large roll of heavy-duty garbage bags and four 10lbABC fire extinguishers. I call this last batch of tools my gardening tools, I use it more often than I like, but it gets me into the action with accident recovery's and cleanups.