[Redbob]

"I talked to a friend this weekend who works for a company associated with VW. He claimed “they all do that” - meaning all the manufacturers have software tailored to emission testing which kicks in when the test is done."

Wrongo, Bwana-II: doing that is strictly verboten, and has been since Day Uno, as we say here in Texas...
See my previous reply.

As a former calibrator for a U.S. company who shall remain nameless (headquartered in Auburn Hills, MI), I can tell you there is no uncertainty on this point in the auto industry, and when the VW thing was discovered, the same people were testing a BMW X5 that showed identical numbers on the highway and on the dyno.

[Moltke]

OK, thanks. I’m really not familiar with the details (not that that ever stopped anyone from commenting anyway).

[ConservativeMind]

So this really is a unique case and points to true internal issues at VW.

Wow, I was giving them the benefit of the doubt until your posts.

Thank you for speaking up.