Scores 19 Highway MPG and 16 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 (STD).* This Ford Expedition Features the Following Options *.* Stop By Today *Stop by Barber - Dyson Ford located at 501 E Highway 66, Elk City, OK 73644 for a quick visit and a great vehicle!