[Redbob]

If they reflash these cars to a conforming strategy, it’s guaranteed to result in poorer performance and driveability on the road. It won’t affect the claimed fuel economy, since those numbers were obtained with the emission controls active, but it’s certain to reduce the real-world fuel economy, as compared to when the controls were not active.

[Kickass Conservative]

I believe that Diesels aren't included in States that require Annual / Bi-Annual Smog Inspections.

If I had a VW Clean Diesel that was re-calibrated, I would find someone to “undo” the Recalibration. Simple as that.

Screw the EPA and the Oligarchs they rode in on.

[kingu]

It won’t affect the claimed fuel economy, since those numbers were obtained with the emission controls active,

I've heard that claim multiple times now; I've never seen nor heard of any monitoring of smog control devices during a National Highway Traffic Safety Administration fuel economy check. Has the EPA started conducting joint tests on the grounds of other administrations?

[Paladin2]

For instance: If a light duty vehicle did not hit WOT on the city test cycle, emissions in the real world at WOT were unregulated.

Some vehicles were purposely overfueled to minimize peak catalyst temperatures to insure high conversion effieiencies at high mileages. So they dumped plenty of CO hauling trailers up grades.