I bought my (Hemi, 4x4 Limited) Commander on Labor day, and took it to Mississippi on a 325 mile trip the next weekend. Got 15.8 mpg on first trip, 65 or so on 2 lanes, 75 on freeway. This weekend, I got 17.3 running 70 on the two lanes, and up to 80 on the freeways. That's pretty close to the 4.7 Grand I traded for it (17 mpg avg). I love this thing!