Hyundai Sonata GL 2015 Automatic Gasoline mileage: 300 KM or more The gearbox oil has been changed at Auto Hek with a full gearbox flushing cycle. The gearbox oil will be changed after 80,000 km from now, God willing. Mileage is over 400,000 km. The engine has been overhauled with original parts and the oil pump has been changed. Since last year, it has become like a new car, praise be to God. There is no noise, no overheating, or anything. These are common repairs for this type. The car, by the grace of God, has no issues now. Asking price is 31,000.