Do Gasoline engines produce soot?

[outrun]

Even in minute quantities that is? Thanks!

 

[JHZR2]

yes, and it is far finer soot than diesels produce. Many theorize that the effect of gasoline engine soot can actually be worse, as this "nano-based" soot can lodge deeper and harder into the lungs than diesel.

I guess it turns into a quantity vs. quality issue then.