GMC Sierra SLE 2011 Used Automatic Gasoline mileage: 300 KM or more 4WD The car is fully sprayed for cleanliness. The car does not complain of anything. It has a Bullet muffler, a full exhaust, and a full tune for performance improvement + bags + throw. The interior is 80% clean. It has a 40,000 BTU Tru-Cool transmission cooler and a new set of tires has been changed for it.