What is everyone getting for their MPG on the 2017.5 Trailhawk? I'm only getting 17 total and I'm pretty pissed - the sticker says 22-30 and with a 12 gallon tank I'm always at a gas station. I just drove 180 miles RT in cruise control at 70 MPH and only got 21. What recourse do we have with Jeep? When I took it to the dealer the service person basically said that it wasn't their issue.