Question: what is the difference between k-1 kerosene and diesel?
Answer: Kerosene is a lighter diesel oil than #2, hence why it is designated as #1 diesel. ... Kerosene doesn't contain very high levels of aromatic compounds; they typically get concentrated in the #2 and heavier diesel fuel oils. This is part of the reason kerosene burns drier, with less lubricity, than #2 diesel.