25/33 does sound more realistic for city mpg but a little low for highway. I have gotten as low as 18.2 with all city driving when daytime temperature barely made it into teens here in Colorado

I recently went on my first road trip in HAH and it exceeded 35 mpg on all highway driving routinely. One 150 mile section even showed 42 mpg on the display. I have been seeing about 22 mpg in the city when it has not been bitterly cold but still all winter driving. It should get closer to 25, I suspect, once engine breaks in.