This truck is a thing of beauty for sure. I had a 1.5 hr drive home with it and it for sure road walks quite a bit and I suspect that will stop as the tires get some wear in them. My only concern is that for the first 30 miles or so, it was getting 21 MPG and then it dropped to 14.5 for the rest of the trip. No change in driving and all highway. Anyone have any thoughts on the drop on MPG?