Just got back from taking a family vacation to Pigeon Forge TN/ Great Smoky Mountains. Had a blast and the Jeep handled everything with ease! Trip was around 600 miles from our house to Pigeon Forge and we averaged 19.5 mpg by my calculations and 19.7 by the computer. This was travelling from central Illinois driving approx.75 mph in rain most of the way down. We have the 3.6 V6 and it made easy work of the terrain both on the highway and throughout the mountains. Coming home for the 600 miles we were driving in rain again and a strong head wind and averaged a little less at 19 mpg. I was very pleased with those results considering we had me, my wife and our two boys plus the rear of the jeep was loaded with luggage for 6 days. Our boys are both over 6' tall and they said they were comfortable in the back seat for the journey. We explored a couple days in the Smokies hitting Cades Cove and Newfound Gap roads! We are saving the roads off the beaten path for a future visit due to weather conditions and time constraints. The scenery was absolutely beautiful and we all look forward to making more memories with our Jeep in the future.