Why the smoke?
Why the smoke, indeed? Every time I see a large or small truck belch a huge amount of smoke, I think to myself, "It's no wonder people hate diesels". Everyone knows that diesels are filthy, right? Is it not surprising that, though diesel vehicles are the norm in Europe, they barely have a foot hold in this country. Just think where we'd be if GM hadn't produced such a crappy diesel engine and folks didn't have to see displays of trucks and buses making large quantities of smoke.
What I'm trying to say is, if you believe in diesel power and want to see more diesel vehicles in this country (and possibly cheaper fuel), remember, you're an "ambassador for diesel". Every time you blow smoke into someone's face, you've alienated another potential supporter for diesel and reinforced the view that diesel truck drivers are a bunch of in-bred hicks.
Bob