I borrowed my neighbor's elderly F150 to haul a playset home for the kids. The tank looked full at the outset, so I topped it off at the end. 28 mi / 0.93 gal = 31 MPG, although my error bars have got to be quite large on a fillup that size. I even wonder if it's possible for the pump to have made a totally erroneous stop, although that has never happened to me before.
I was being somewhat moderate with his truck, 1.5X combined EPA is typical for my "moderate" hypermiling mode (moderate = not quite as much EOC P&G). I think the truck is a 7th gen, not really sure, so 1.5X would probably land me in the 20-25 MPG neighborhood. Then again, I didn't check his tire pressure, so 1.5X might be optimistic.
I told him I might have got 30 MPG, he said "no, that truck gets 8 miles per gallon."
"Not today."
"Oh, that's right, you're the guy who gets good gas mileage."
I hope I'm not just bragging, anyways.