If you have a full tank of fuel coming out of a heated shed I wouldn't worry about it too much. Currently have a wheel loader and a JD 7520 fwa out moving bales running straight #2 and it is a balmy 0*F out with a 25 mph wind. They left a 50 degree heated building with full tanks 3 hours ago though. We run our semis on straight #2 in sub-zero temps many times in the winter. Fill them up in the evening and park them in the 60* shop over night.

We have a small tank of #1 that we will sometimes put a blend in the feed wagon tractor as we don't normally run that in anything but cold storage, but otherwise we use very little #1 fuel. Used to be only a 50 cent markup or so but these days it seems like it's over a dollar and that goes a long way towards helping pay the heat bill if you're running trucks. We may have less issues with our fuel up north than the guys down south though. Seems like you hear of more issues when it does get cold down there.