My 2011 Dmax seemed to get better MPGs after ~10k miles.
Pulling our camper (~30' bumper pull) to Lake Mac a few weeks ago we got 11MPGs. There were some pretty decent cross winds on the way up.
Empty around town I am seeing 17. On a trip back and forth to Colorado Springs a couple of weekends ago I got 20 MPG.
Is Dodge going to go with Urea soon? I thought they had it on some models (chassis cabs)?
I see similar numbers with my '11 Duramax. I have seen 20 going from Denver to Gypsum (up and down but more uphill). We all know it's a big difference if you are going 55-65 vs 75-80 mph. I'm not at all bashing any of the trucks. Just putting out what I have seen for comparison.
I was told Dodge goes to urea this year. Urea is not as bad as many make it out to be. 2.5 gallons every 3-4k for me. That 2.5 cost me $10 at Napa.