07 mileage
I'll add one more to your list of 07 owners. I'm only at 20K in mileage, but the other peoples' mileage is comparable to mine. Don't know if I'll get any improvement with further break-in, but I was working in the low twenties. I put an apu on the roof, and now I'm out of the competition--two mpg right off the top, no questions asked. I won't be seeing twenty mpg again. Sixteen to occasionally touching nineteen. In anything from my Honda Insight, GMC 3500, to Freightliner I was at the top of the list for mileage, so I hate to see the leadfoot driving this thing.
On the positive, this is one stable ride right out of the box. I heard stories on stability and was a little apprehensive, but it's one issue that seems to have been fixed. Can't even tell there is all the extra weight on the roof with the apu. And the gorge to Knoxville is a breeze.
eb