Back in the day, the boss says to me, wrap the tank, put in the battery heaters, and check the coolant before taking your trip.
Coolant was easy to check: - 60, good. Battery heaters, easy enough, accessible through the cab, good. Wrap the tank? "I don't wanna, I have to crawl under the truck, I'll get dirty, it's cold waaa!"
Shoulda, woulda, coulda: Would have been much easier to put the tank wrap/heater on in a relatively warm +10 on a packed snow yard, with a nice warm shop to retreat to every so often at Los Anchorage rather than building the Rube Goldberg tent over the truck and dealing with space heaters, additives, etc for the better part of a day when the fuel gelled at -35 just outside of Glenallen.
Although my commercial truck / equipment days are long past (and they were minimal to begin with) for my diesel pickup, I'm pretty aggressive about getting winter blend as soon as available...even though it's nowhere near as critical as in times past.