GMC Sierra SLT 2014 Used Automatic Gasoline mileage: 328 KM or more I have a GMC Sierra 2014 Black Odometer: 328,000 km Gear and engine are in excellent condition. Original body except for hail damage on the hood, roof, and doors. It has a transmission cooler. It has a K&N filter with intake. Abu Tair mufflers. And a second additional battery. Selling to the highest bidder. May God grant us and you what is best.