Thanks for the info and the insight!!!So since your truck gelled up once in 15 years in one of the coldest climates on the planet, it's bad advice?
ROFLMAO.....You even quoted the part about there being exceptions.
And, presuming you're an oil expert up there in the patch, maybe read up on different types of winter diesel. Some are #1/#2 blend, some are additives to #2.
I'm a shadetree diesel exspurt too. Have had diesels from the N Slope to SE AK, Cascades, Rockies, upper midwest. That about covers cold climates on this continent anyway. I've pre-emptively added anti gel additives a few times when record cold snaps and truck parked outside getting cold soaked, or driving from one climate to another but it's not necessary in the vast majority of conditions.^Good call on watchin out for bio in the winter. An indicator is, if the pumps are filtered and the fuel appears to be coming out of the nozzle slower than it should, there may be some gellin going on.
Yeah you assumed wrong, I work at a refinery. I engineer/program/maintain the the units that blend the diesel before it's loaded into the tanker trucks and hauled off to the stations. The lab that does cloud/pour testing on our fuels is a 30 second walk from my office. I don't need to read up on winter diesel, I do it for a living. I'll let you in on a little secret, there are far more than 2 diesel blends, well over a hundred in our system last I checked.
Oh, and biodiesel isn't sold in the colder months, it's blended in summer only. You are wasting your time with the highly scientific nozzle eyeball flow test. (PS- fuel is generally stored underground at most gas stations where it is much warmer and doesn't gel).