In our part of the country additives in Diesel Fuel are necessary. Diesel fuel will gel up below 20 and it must be treated with 40% #1 or anti-gel additive. Many times #1 is not available or to expensive to acquire. Most of the trucks here have fuel heaters in the tanks or lines to stop gelling. I have not seen any motor homes with fuel heaters. If a customer fills his coach in October, before dealers winterize their fuel, he better well add anti-gel additive in such quantity to stop gelling if he wants to go south in the winter.
Don & Bev Morgan Weyauwega WI, 05 Itasca Horizon 40KD, 400 HP Cummins, Adopted by a great couple, Toad 07 Saturn Vue AWD, Air Force One, TST 510 TPMS, Mayor of Weyauwega 2007 - 2013, Waupaca Co Board Supervisor 2010 - 2014