Delivers 20 Highway MPG and 16 City MPG! This Ford F-150 delivers a Regular Unleaded V6 3.5 L EcoBoost engine powering this Automatic transmission. ENGINE: 3.5L V6 ECOBOOST -inc: auto start-stop technology (STD). *This Ford F-150 Comes Equipped with These Options * . * Visit Us Today * For a must-own Ford F-150 come see us at Barber - Dyson Ford 501 E Highway 66 Elk City OK 73644. Just minutes away!