Quote:
Originally Posted by adc
Don't be so quick to desire the diesels. While they are cleaner than ever before, they still lag behind the gasoline counterparts especially when it comes to certain very harmful nitrogen oxides by-products.
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And they probably always will. A diesel emits more NOx and more fine particles.
But then again they emit less CO2 than gasoline engines. So it's always a trade off: less global warming or less air pollution.
High compression means high efficiency but also more NOx
I also think the production of diesel requires less energy/resources than the production of gasoline.