That's great, snrusnak. I think what might have happen is that your wife was behind you and you cut the wind with the truck. My truck stinks when it comes to getting good gas mileage.
She actually wasn't behind me, she took a different route for more than half the trip as she had to swing by her parents and drop off the trailer that we didn't need. We met up about 3/4 way at a seven eleven within 20 minutes of each other (love it when a plan comes together). If we had been driving together those tires never would have gotten scraped up!