GMC Sierra 2008 Automatic Gasoline mileage: 295 KM 4WD GMC Sierra 2008 Double Ground The engine is guaranteed, and the gearbox has been replaced with a factory one, guaranteed and under warranty. The four-wheel drive is working and excellent. Very clean interior. It has a set of Profender sports shocks, control arms, and springs, giving it a good lift, better than it appears in the picture. Its air conditioning is freezing, and it has a 40,000 BTU transmission cooler. Meaning the engine and transmission temperatures are very excellent, praise be to God. The dashboard mileage currently installed is much higher than the actual mileage because its previous owner replaced the dashboard for the speed conversion from miles to kilometers. The actual mileage of the vehicle is around 250,000, and the dashboard shows about 600,000 according to the first owner. The vehicle is clean and needs some minor maintenance like any used vehicle. Please, only serious buyers should contact.