[instarx]

That article you quote is from 2006 and reflected the situation in 2006, not 2008. So you are in fact completely wrong. When the article was written it was true that there were no European diesels that could meet Tier 2 regs using U.S. 5 ppm LSD. The enabler of a 50-state diesel, EPA-mandated ULSD fuel, was not introduced into the US until late 2007.

But your biggest error - saying that European diesels operating in Europe (using their version of ULSD) were dirty, filthy, polluting destroyers of the planet was..., well, badly misinformed. Except for the possible exception of NOx, modern diesel engines with emission controls produce far less pollution per mile or per liter than do gas engines.