When I used to haul the stuff, it was #2 fuel with a better additive package, or rarely it was actually Diesel fuel.
I know this won't make sense, but 30 years ago there were 3 grades of fuel, #1, #2, and Diesel. I stopped seeing Diesel quite a long time ago, as everyone would prefer the #2 with the additive packages because of price. Diesel was a higher refined #2, with a higher cetane rating.
BTW, kerosene is typically just clear #1 fuel, at a much higher price. The dyed #1 fuel would be cheaper, but I wouldn't run the dye through anything that wanted kerosene. That is just my personal feeling though.