Quote Originally Posted by orly_andico
1) tama si m2, diesel engines are cleaner than gasoline engines. the output of CO and NOx of diesel engines is much lower than gasoline engines because of the more complete burn. what gives diesels a bad image is SOOT. that black smoke coming out of the tailpipe is mostly soot, e.g. carbon. it's not toxic per se, but it sure looks bad...
If you're shown two glasses of water, one full of cloudy water, and another full of clear water, which one will you drink?

Of course the one with clear water in it.

But if you find out that the cloudy water is just water and sand, and the clear water is contaminated with some extremely rare toxic substance, which would you have?