I do believe it's a political B.S. game with all these new motors.Bottom line is they all get worse millage {some by a lot} than the older engines and more fuel burned is more pollution no matter how you look at it.
As far as the increased cost for these boat anchors being passed on to the consumer,that stops right at the O/O's and goes no further and we all know that.
This round ,like the last round of emissions motors will add in the area of another $10k {close to $20k in less then five years} to the cost of a truck that will get much worse fuel economy,an astronomical maintenance cost for the particulate filter and to add insult to injury they are predicted to not last anywhere near as long as the older ones.
Can anyone explain to me how this can be good for the environment?
BTW Dejanh China is the worst when it comes to pollution,not us.