I could not see the link from work, but from the subsequent posts I'll just say this; EGR seems to cause more smoke out the tail pipe while reducing NOX supposedly. Smoke out the tail pipe gives diesels a bad rap while reducing invisible products does not seem to help public perception of our cars.
But now, I'm drifting of topic
05 Passat GLS 2.0 PD, UnChained & Steel GPs by VW, 15" steelies, New TB/WP, motor mounts, alt pulley, trans filter, cv boots, TSB #P9/66C8, clear bra & tint, both raxles. Now only driven 1-2 times per week. 123k miles (now for sale)
DD is a 2012 Kia Optima SX turbo with 274 hp and 269lb-ft@1,750-4,500rpm