I reset my consumption before I hit the road for my drive to CT for the meet. On the first leg of the trip up the Garden State Parkway, traffic was fairly light and I was able to maintain 75 mph and achieve 18.8 mpg. Traffic conditions changed once I crossed into NY.
On the way home I had a wide open road but maintaining one speed is boring. I jumped on her and had some fun, having to dodge the damn left lane hoggers and those that feel the need to block the roadway by driving steering wheel to steering wheel

80 or so all the way home. An hour and 10 minutes including a bathroom and coffee stop, I managed to average 17 for the trip.

Not bad considering my norm is 13.5
I'm done with my experiment