I had to get a picture of this, because I don’t know if it will happen again.  It was the section of 78E from Allentown to 287N.  Pretty sure I had a decent tail-wind (West to East, of course), and it might even be a net-decline for the entire section.  Anyhow, it was pretty cool 🙂 35.4mpg was the highest I saw it go, but it was right before getting on 287N and I wasn’t quick enough with the draw because by the time I got on and merged it had decreased, never to return to that number.