On my car, yes. I took the first road trip this past weekend. It's rated 17/24. On the highway, I got 26.5 driving 77 MPH, 4 people, trunk 3/4 full, temp in the middle 90s. Had I driven 65 or less, I could have easily gotten 28+. I average 20-21 in mixed city driving.
In my Aspen, barely. It's rated 13/20. In ideal conditions (no wind, low speed), I can barely get 20. I'm running on aggressive AT tires -- with very high rolling resistance. My next set will be LRR. Typically, I average 18-19 on the highway. Speed and wind make a huge difference. For mixed city driving, 14.5-15 is the norm. It dips down to 12.5 in the winter. It does some quite a bit of idling as the wife waits in line to pick up the kiddos from school.
I drive "spirited" in both.