Normally, you would have no problem running B100, BUT as Bobo pointed out, you live in NY. NY - this time of year = cold.
One of the weak points of B100 is it will usually gell at a lot higher temperature than #2. The solution?

Simple, I would run B50 (half Biodiesel and half #2). This mixture should do fine until at least 10-15 d F. If you want to test, put the B100 in a jar, then another jar with 50/50 in a freezer. Check the temp and see when they gel. The 50/50 normally should not gel in a regular freezer.

Let us know how it goes. BTW, running B20-B50 you should not really see any difference in fuel mileage.

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87 300SDL - 215K Miles !!
99 F-350CC Dually PSD - 190K
86 300SDL - 189K
All on B-100