I guess, the tax is based on the "official numbers" not the real numbers. So you are in the clear. As others already posted, this scandal is about the NOX numb

I guess, the tax is based on the "official numbers" not the real numbers. So you are in the clear. As others already posted, this scandal is about the NOX numbers, what is a different thing, but I am pretty sure that the CO2 numbers (which correlate with the fuel usage, as much I know) are forged too (see my other posting).