the issue with diesel is more complicated than is posted.
the new formation of diesel is typically blended with bio diesel, or some quantity of ulsd (ultra low sulfur diesel) or another trick is to blend it with kero at the distributor. these formulations are done at the seller and buyers specifications, depending on the time of year, and for the forecast period when it is intended to be used.
it is possible you could get a left over batch of straight summer diesel in the winter (if the place has a low volume of sales.)
or you could get a batch of diesel mixed with 'bio diesel' which is VERY cloudy, almost milky in appearance, gels easily, and is HARD to clean out. (it takes several tanks while being agitated to get all the crud out) I am not happy with Bio diesel in situations where life and death is concerned. i think this is a problem which will come to fruition after an accident due to gelling and contamination, filter clogging from bio diesel. (sorry for the rant, just MHO) BUT, not every place sell bio diesel or bio diesel blends.
the best idea is to blend your own diesel/ kero mix, i use 70% diesel, 30% kero. i bought a 5 gallon fuel tank, and simply put in 3 gallons of diesel, and 1 1/2 gallon of kero. I can't lift the whole thing above the tractor safely when it is filled with 5 gallons, thus the low volume! just make sure you buy diesel at a reputable station that does a high volume of sales. ASK them if it is biodiesel (or a bio diesel blend) if it is, find another station. usually they will advertise bio diesel, thinking it is 'green' and more attractive.
the additives are a waste of time and money. per quart they are about five time more expensive than just buying kero and blending your own.