Not such a great deal for the rest of us who are forced to follow behind your smoke cloud in your pre-clean emissions More diesels than I can list.
It's all about perspective.....
The real polluters are not older not regulated diesels that put out larger PMs that fall harmlessly to the ground in short order after being expelled.
The current real polluters are all of the current unregulated nor measured today gasoline powered engined vehicles that expel Mega-Tons of ultra-fine PM that stay in the air being creating brown clouds that are breathed in for months on end!
Picking on older almost non-existent today or on the current overregulated emissioned almost non-existent today sold light duty diesels that today make up less than 1 % of what is sold today creates no cleaner air! But it does create a burden on these fuel sipping models which prices them out of reach of most and increases their cost as to put it so high as to render them irrelevant today to the fuel savings market for what these stupid current over regulated emissions regs cost!!!!!!!!!!!
Did I mention they do not give one bit of cleaner air for their added cost.........