2008 Automatic Gasoline mileage: 195 KM 4WD GMC Sierra 2008, double cabin (crew cab). The Sierra 2500 HD Z71 engine, model 2008, comes with a 6.0-liter capacity from the (Vortec 6000 V8) category. Clean interior. Inspected and renewed. Engine and gearbox are in excellent condition. Stone tires. Body is visually good. No bodywork or paint, but it's not free from dents as shown in the pictures. I just bought it intending to use it, but I got a newer model and want to sell this one.