My brother and I drove to MT from Iowa for an elk hunt last week. With a medium load on the way out and fully loaded on the way back, we managed 16.7 mpg over 2,650 miles. This included significant mountain driving. My cruise was set on 85 once we hit SD on the way out, and 89 for most of the way back. The Ram did a phenomenal job for us, and I couldn't be happier with overall performance.