Scores 22 Highway MPG and 17 City MPG! This Ford Expedition delivers a Twin Turbo Premium Unleaded V-6 3.5 L/213 engine powering this Automatic transmission. ENGINE: 3.5L ECOBOOST V6 -inc: auto start-stop technology (STD). * This Ford Expedition Features the Following Options * . * Visit Us Today * For a must-own Ford Expedition come see us at Barber - Dyson Ford 501 E Highway 66 Elk City OK 73644. Just minutes away!