First things first: I've purged the comments and migrated your question to our site for mechanics and DIY enthusiast owners of cars, trucks, and motorcycles (where it may or may not survive—as you have already noticed).
I'm sorry your question has gotten the response that it has; this is not entirely your fault. Experienced users should know that scopes are not exclusive on Stack Exchange; there are many questions that could be on topic on multiple sites and it is the author's prerogative to choose which audience they want to address.
The folks who are arguing with you about whether the smoke is blue are getting hung up on technicalities. It's a thing that engineers are known to do (often for good reason) but it's completely unproductive here. "Blue smoke" is a well-known phenomenon and a response along the lines of "the smoke is not actually blue" belongs in an answer, not in a comment or close-vote.
There are, however, some things you could have done better. Your original question on Chemistry SE was well-received with a net +2 score, despite not attracting much attention. You probably should not have cross-posted to another SE site before making an effort to better promote your original question. You could have offered a bounty on the question, for example. If you wanted to attract attention specifically from engineers, you could have posted a link to your Chemistry SE question in our chat room.
I chose to migrate this question on the off chance that it would be better received on Mechanics SE, where there are already many questions about "blue smoke"—but honestly, I think it works best where you first asked it, and if it's closed there I don't have any plans to reopen it here. I did make a few notable edits beforehand:
- Don't ask us to find you a study. We are a problem-solving site and the basic task of researching a topic is not an engineering problem. What you are really asking for is an explanation of a phenomenon; but it is perfectly acceptable to indicate that you prefer answers include published references. (This is good policy everywhere on SE, though not always enforced by close-votes.)
- You should always establish your premise at the start of the problem statement—not later on as a combative note "for the doubters." Your problem statement is not the place to have an argument. Simply state what is common knowledge; answers can address if and when the common understanding is inaccurate.
You shouldn't have been put on the defensive in the first place; that was uncivil. But in the future you would do well to disengage sooner, or avoid engaging at all, in the comments on your question. Provide what information is useful, clarify if you must—ideally in the problem statement—but avoid chatty, back-and-forth conversation.