GMC Sierra Z71 2009 Automatic Gasoline mileage: 1 KM 4WD GMC Sierra 2009, extended cab, driven approximately 344,000 km (low range 4x4). Clean, guaranteed engine, chassis, and airbags 100%. The vehicle has additions: 1- Electronic muffler + bypass valve from Marad + air compressor to turn off the muffler and restore its original sound. 2- Sport catalytic converter. 3- Off-road rims + off-road tires. 4- Very accurate sport gauge. 5- Black bed cover (tonneau cover). If the vehicle doesn't reach its asking price, the engine is preserved and available.