2009/4X4/2500 Quad Cab/3.73 gears/six speed auto/K&N air filter/EDGE Insight - completely stock. Current mileage on truck is 18,531. J35 flash done prior to trip and have not experienced one error code (knock on wood) since buying truck last December.
Trip: July 5th to August 20th/7957 total miles driven. All stats hand calculated. Primary use is for towing fiver. GCW 20,020 lbs, truck 7,660 lbs. From Pacific Coast (WA) to New Jersey and return. Weather was extremely hot and A/C was on max most of trip. Did notice better MPG when not using A/C. Towing speed was 61 MPH using GPS.

7160 miles connected to fiver - MPG = 11.12
817 miles not connected MPG = 15.697 (mostly in city/stop & go)
Best MPG towing 13.805 (strong tale wind)
Worst MPG towing 9.216 (bucking 35-40 winds into Aberdeen, SD on HWY 12)

Regens tracked for 6400 miles using EDGE Insight: total number of regens = 51, averaged regen every 125 miles. Longest cycle without regen was 235 miles, shortest regen was 27 miles not connected in city driving with lots of lights. Regens typically lasted 11-14 minutes.

Average cost of camping fees for 47 days = $23.81
Average daily cost of fuel for 47 days = $47.75