Drove for 6.5 hours last night to get home, it's normally a 4 hour trip but about 2 hours into it, my brother called and asked his wife, who was in the back seat, if she had the keys to their car, which was back at the place we had left. She looked in her purse and said yes. So we drove back an hour and met my brother to drop them off. Then we took off again. Instead of getting home at 1930, we got home at 2130. The jeep did great though, 17.5 on the first tank, the one leaving.corpus which was almost half way empty to start with. Filled it up in Hondo and then drove to rio frio. Did a sight seeing trip of 100 and something miles through the curvy mountainous roads on 1/4 o the second tank and still ended up getting 18.5 mpg on that tank. The third tank looks like it will be around the same as I am almost to 300 on the tank and the needle is looking to be in the same place as the other two tanks