So just to continue this saga....
Still averaging about 12 mpg in city stop and go. I had to go to IKEA, so as an experiment, I went to the store 36 miles away. I basically leave my office and get on the highway, and the IKEA is right off the highway at the other end. Very little traffic. I drive very reasonably - steady pace, very few passes, very few modest accelerations, and (because I had to go back today), two full days of basically highway driving for about 140 miles. And I got a whopping 18.6 (after resetting the mileage computer at the beginning of this experiment). Even the slightest tap on the pedal - to maintain speed - and that mileage bar heads straight for zero.
So I'm now convinced that the only way to attain their mileage figures is by driving like a 90 year old (no offense to 90 year olds). There are two options with the eco boost engine. Eco OR Boost. Because if you want any boost, there is simply no eco.
Reserve 2.3l Eco Boost AWD
Burgundy Velvet Metallic, Ebony