Anyone drive a 2017 GM pickup with a Duramax?

[helmut in the bush]

I'd like to get a little feedback on what kind of mileage to expect?

[peepsight]

Mines a 2007. 10 to 12 maybe, per gallon

[LIWaterman]

10-12??? My 2014 averages a tad over 16mpg overall if I don't reset the computer for a month. If I'm on the highway and reall baby it (60mph) no hills obviously, I'll get over 21mpg. Mine blows the gas motor out of the water