We're kinda drifting around the subject line, but it has mostly stayed on track?
Steve;
I passed through Montana moving back to my home state of Minnesota. I stopped for fuel in Missoula and Billings and the stations where I stopped all posted "winter blend fuel". In Glendive, a Sinclair station pumped straight #2 with a hefty adding of <em>Power Service®</em>, bless them. The clatter left and the power increased.
I'm about 200 miles east of JJW and also burn straight #2 all winter along with a hefty amount of <em>Howe's® Diesel Treat</em>. When the temps hit -20° the ol Cummins really chugs, but doesn't have a gelled fuel stumble.
I was at the family farm tonight. The 30 year old JD 4000 was in the driveway hooked to the politician's wagon (manure spreader). The 4000 has burned only red fuel in the 10,000 + plus hours on the clock with NO engine problems. Bugger to start in cooler weather if you forget to plug it in for a few hours (no glowplugs).
I pass many Cummins, JD, & Cat powered equipment every day. These have burned only red fuel all their life.
Come to think of it, all the fuel furnaces around here burn dyed fuel without any problem. My dad burned #2 from an outside tank at our old shop. He had a ¾ inch line from the tank until it was a foot or so inside. That was enought to raise the temps beyond gelling before it dropped to the 3/8 inch line to the furnace.
Red fuel brings risks, but not due to engine related problems.
MHO
-John