You got it. Local dealership pulled the stats during a routine checkup. My suspicions were confirmed, that its regenning about once per tankful, for the first 25K of service. ~105 gallons of extra #2 at $3.10/gallon = $325 worth of fuel consumed by regens.

When I was there, a guy with a new 2011 K2500HD was getting his first urea refill - at 6000 miles. Shop bill was $50.


Rough extrapolation is DPF and (dealership installed) urea could cost a whopping ~$2200 during first 100K of operation.