GMC Sierra Z71 2013 Automatic Gasoline mileage: 300 KM or more 4WD Peace be upon you A fully loaded GMC Sierra Mileage: 333 The body has three pieces painted: right fender, hood, and right rear fender from the first owner. 4WD is guaranteed. Engine is guaranteed. Transmission has been overhauled. It has a 40,000 BTU Trucool cooler. It has a Y-pipe. Programmed by Abu Saqr, well-known. Six-speed transmission.