GMC Sierra 2009 Used Automatic Gasoline mileage: 320 KM or more GMC Sierra 2009 The car's mileage is 320,000 km, with a slight increase possible. The car is used daily. The car has no issues, neither engine temperature nor gearbox. The gearbox was changed 5 months ago because the previous owner had it overhauled. I have traveled over 700 km more than five times with it. Normal fuel consumption. The interior is 95% clean. The car is stable, free from shaking, and only needs consumables. Disclaimer. The car was lifted by the previous owner, and the lift is good. Original body, free from paint and accidents except for one piece. Airbags and chassis are guaranteed. AC is like ice and cools the cabin quickly. Installed a 40,000 BTU transmission cooler. Installed Pride rims and stone tires.