due to sulfur content in #2 diesel cats are almost usless thus the high outputs in some of the emissions.

Diesels have a very low HC output and without HC you can't have smog.

Also when a diesel isn't floored it puts out very little emissions.

last two tanks 630 miles on 15.05 gallons & 592 miles on 14.5 gallons all city driving

as far as HWY I drove 720 miles to birmingham al. and had barely gone into reserve but not sure gallons used. on way back form there filled up in Memphis tenn. and filled up at 476 miles @9.6 gallons

its a 2002 jetta 5sp in 4-6 months I will be switching to Biodiesel and be Mr. Green