How Many Kilometers Should a Car Run Before Changing the Oil?
1 Answers
Car oil change intervals depend on the oil grade: 1. Fully synthetic oil should be changed every 10,000 kilometers or once a year; 2. Semi-synthetic oil should be changed every 7,500 kilometers or every 7 to 8 months; 3. Mineral oil should be changed every 5,000 kilometers or every 6 months. Functions of engine oil: 1. Lubrication, ensuring smooth sliding between pistons and cylinders, main shafts and bearings, preventing part wear; 2. Assisting in cooling; 3. Cleaning carbon deposits and sludge from engine parts; 4. Sealing to prevent gas leakage and keep out contaminants; 5. Rust and corrosion prevention; 6. Shock absorption; 7. Wear resistance.