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Old March 8th, 2018, 16:15   #1
Join Date: May 2006
Location: Kingston, NY
TDI(s): 2003 Jetta
Fuel Economy: 65/45
Default Relative CO2/NOx emissions vs gasser sister car

Can anyone tell me what the CO2 and NOx emissions are for the ALH (A4) vs its gasser sister car is? I get grief about the NOx of my '03 Jetta TDI. I am to understand that CO2 and NOx are inversely related; if you tune for one, the other suffers...but in stock tune what are the numbers. I would like to think that while my Jetta will flunk on NOx, it may be considerably better on the CO2 than its gasser sister.
When the numbers are listed for VWs in the UK, the CO2 is part of the numbers say nothing of the Brits being able to buy the Polo <sigh>
Here's the current K Polo GTI gasser engine and Polo TDI:

MPG figures are in Imperial Gallons, multiply by .8 to get US gallons
2003 Jetta TDI, 1998 Original Mini
Previous cars:
  • 1998 VW Golf VR6 GTI, Garrett Chip, Shine Suspension, bagged by a deer one rainy midnight, *&%$ insurance people totalled it
  • 1985 VW Golf GTI
  • 1975 (or so) VW Golf Diesel, much grief, finally stuck a Weber carburetted Scirocco engine in, HOT!
Rides of my Youth:
  • 1929 Type 40 Bugatti
  • 1932 Type 49 Bugatti
  • 1960 3.5 Liter Maserati GT (a chipped VR6 mill is a match of the Maserati mill)
  • English Ford Anglia

Last edited by sdean7855; March 8th, 2018 at 16:25. Reason: images properly inserted
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