I received an email today, which seems to well and truly have done the rounds. It begins with the following: "I don't know what you guys are paying for Petrololine", and goes on to mention both Petrol and Petroline (both in title case), in a seemingly interchangeable manner.
I have never heard of the word petrololine, and cannot, for the life of me, find anything remotely close to a definition for it online. For the most part, Google just returns links to sites all over the place, in which the monologue (for want of a better word,) has been duplicated.
In the course of my browsing, I have seen sites in which petrololine and petrol are listed in the same sentence, in such a way as to indicate that they are entirely separate substances. On the other hand, some sites seem to use petrololine directly in place of petrol, (such as in describing petrololine engines as opposed to diesel ones).
Does anyone know what petrololine is, if it bears any difference from run-of-the-mill petrol, and whether or not the word is in fact a trademarked term that should be capitalised in writing?