Hi Frank, Welcome to the forum! I think it all depends on the setup (gears) and driving conditions. The F150 ecooboost trucks that have the lower gears driving 65 seem to be getting around the advertised fuel mileage. Check this thread for more results:
http://www.f150ecoboost.net/forum/6-f150-ecoboost-chat/7-real-world-f150-ecoboost-fuel-mileage.html
http://www.f150ecoboost.net/forum/6-f150-ecoboost-chat/7-real-world-f150-ecoboost-fuel-mileage.html