No, but I did sleep in a Holiday Inn Express last night......

Thanks for the information guys! Hope all is well Rick.

My 2015 dually avgs 13 around town and at 60mph around 20 and at 80mph around 15-16. All DIC numbers but I have hand checked it to be pretty accurate.

2014 Crew Cab Reg. Bed 6,000 miles on it I run a 5" lift and 305/55 tires I just went to LOTO and back (not pulling the boat) first run till I filled up hand calc at 16.8 running 75-80 all the way. On the way back I went around St. Louis instead of the back roads (rt 54) and I did a bit better 17.2 Mph.

For running a lift kit and wide tires I couldn't be happier

I put a Bullydog tuner on mine when it was brand new and it is showing 19mpg avg over the 50K miles I have put on it. It will get 21-22mpg on the interstate with the cruise on 75mph empty. I use the economy/tow program on the controller.

For real on going back to the 60k drive-train warranty? Maybe time to trade in the 36k mile 2012 and keep a 2015 for long term then...

Any other changes for 2016 Duramax?

I heard more power and different hood for the 16's

Heres a 'leaked' pic

I chose my 2008 GMC hood and body over the Chevy but not sure I care for the square lines on the redesigned HD GMC's. They look much more pronounced up close than in pictures.
Before there were also interior differences; with the redesign, everything is exactly the same for a given trim level......