Alan Ratcliffe wrote
have chain lengths between 5 and 7 carbon atoms long. The kerosenes have chain lengths of C12 - C15. Petrol falls between the two at C7 - C11 and diesel is C17 and up. I get a little hazy (as one does, working with petroleum products ?) on the exact details, but that's it in a nutshell.
Naphtha often has a tiny amount of benzine in it, but may not contain more than 0.2% for safety, as it is highly carcinogenic. So, using benzine as lighter fuel or a "recreational substance" is probably not advisable. "Lighter fuel" is pure naphtha.
I just wrote and passed my chem exams 2months ago... PLEASE MAKE IT GO AWAY!!!! ☹