It's partly a forest for the trees thing, both literally and figuratively. They're trading NOx emissions for CO2, only difference is the higher CO2 levels still fall under the limits, due to the efficient nature of diesels. I haven't studied it closely enough to create my own overall environmental impact opinion honestly. I'm sure the NOx is bad, but they always talk about it in multiples of the limits set in the law. "40 times the limit" etc. 40 times nothing is still nothing, or 40 times 8 parts per billion could very well still be WAY lower than many other things out there. It's the same way people bastardize statistics to make things sound the way they want without having to actually do science. But I do know I'm burning more fuel...
That said, my car won't idle longer if I shut down mid-regen. Then fans will stay on till it cools down, but that's it.
Last edited by bennybmn; 11/16/2015 2:15 PM.
