GMC Sierra SLT 2005 Automatic Gasoline mileage: 300 KM or more Peace be upon you. The vehicle is for sale for those who are interested and have the desire. Engine 4.8 single without double, automatic transmission. The vehicle is for daily use. I've had it for a year and haven't spared any expense on it. I changed the oils. All the suspension parts have been replaced. The vehicle is full and solid. The vehicle's mileage on the odometer is 500,000 km, but honestly, it's approximately 430,000 km. I travel and go back and forth with it, no problem. The existing issues have not been changed yet. The external throttle computer is in the scrapyard and does not exceed 250 SAR. (The second gear doesn't engage immediately, you have to lift your foot off the accelerator and then press it for it to engage). And there is a dent at the rear of the chassis from behind, it does not affect it at all.