Just did a road trip to Vegas, about 800 miles round trip give or take. mostly uphill or downhill, not really flat ground. Plus alot of driving in traffic in vegas, i averaged 28MPG with a drop in panel filter and Cobb AP on stage 1 91octane map. Not bad at all if you ask me, pre-AP i would get about that but not have as much fun.
Highway i probably see about 34 currently
City is close to 24.