OK, so my wife made the first trip to the gas station in the new HH. 378 miles on 15.2 gallons, which is 24.9 mpg. Not bad for the first tank, and we were "playing" a lot with the new toy and I'm sure later tanks will be better. We won't get the EPA numbers here in Houston anyway, since A/C is mandatory for much of the year, but if we can consistently be in the high 20s that'll be fine.