which has more pollution a diesel or a 2 stroke?

Answer 1

2-stroke. They are notorious for incomplete combustion.

Answer 2

Well newer direct injection diesels are more environment friendly that 2 strokes. but if we look back a couple of years I would say the old diesel truck. But California hasn't done away with diesel's, there just sending 2 strokes out of there state............

Answer 3

Diesels aren't high polluters just because they're diesels, you only see black smoke when they're not running right, and that's mostly particulate pollution you see, not necessarily harmful chemicals.

2-strokes are more polluting because of their inherent design flaws. They produce more power per drop of gasoline, but because you mix oil into the gasoliine, naturally alot of that oil is burned in the combustion chamber and goes out as smokey pollution.

Perhaps one day hydrogen will power the world.

Answer 4

A 2-cycle gasoline engine pollutes more than even a 2-cycle diesel engine. The unburned hydrocarbons are the issue. A diesel has complete combustion....period.

Answer 5

2 stroke

Answer 6

It depends. For the most part, it's goping to be 2 strokes, but deisels that are tuned to get more hp are the ones billowing lots of smoke. They are regulated, so you don't see many doing that.