GMC Sierra 2014 Used Automatic Gasoline mileage: 500 KM or more 4WD Peace be upon you. Sierra 2014, driven 500. Engine is guaranteed, agency-maintained, never opened. Gearbox only had the torque converter lowered to avoid a manufacturing defect. Engines are guaranteed. The body is fully painted except for the roof and tailgate. The chassis has a small dent on the right side that does not affect it at all. Latest edition of Pride rims and Shahin tires. New inspection, new registration. Programmed to disable the 4-cylinder system only. It has a 40,000 BTU transmission cooler.