[newmoon]

I'm not sure I fully understand all this other than VW tweaked the computer to show one set of numbers while being tested and another while driving. Really no differant than what many members of this forum do with tunes and aftermarket parts. Now I agree it probably isn't a great idea for the manufacturer to do it.

My question is with this tweak how much did fuel efficency increase? Would you as a owner want to bring your car back to the dealer for warranty work which you know will more than likely result in a drop in MPG, and possibly power. I would not period.

Is this another case of the EPA being the end all say in what they feel is correct whichever way the political winds are blowing. Does the EPA check all cars in this exact manner or did it single out VW? If it doesn't how do we know the vehicles which we are driving could hold up to this scrutiny?