GMC Sierra Z71 2011 Used Automatic Gasoline mileage: 550 KM or more 4WD GMC Sierra Z71 2011 for sale, fully loaded. Black color. The vehicle has been well-maintained without any modifications. Mileage: 550 8V engine is good, no oil consumption or burning. Melling high-pressure oil pump. 6-speed transmission is good. Body is original. Airbags are original. Chassis is original. 4WD is original. Interior is very clean, ماشاء الله. Air conditioning is excellent. All windows are original except the front one, which was replaced due to inspection. Registration and inspection are new, ready for transfer.