How Many Miles Should You Change Engine Oil?
2 Answers
Typically, many car owners in China follow the recommendations of 4S dealerships and perform routine maintenance every 5,000 kilometers or six months, which usually includes changing the engine oil, oil filter, and air filter. However, most car owners in Europe and America generally change their engine oil every 10,000 kilometers. The specific details are as follows: 1. Function of engine oil: The primary functions of engine oil are lubrication, cleaning, and heat dissipation. In fact, engine oil is used in many parts of a vehicle, but the oil that is changed every 5,000 kilometers refers specifically to engine oil. Most people generally use semi-synthetic or fully synthetic engine oil, with conventional oil being rarely used. Conventional oil is typically used in agricultural machinery, three-wheeled vehicles, and motorcycles. 2. Replacement intervals: Conventional oil: 5,000 kilometers, semi-synthetic oil: 7,500 kilometers, while fully synthetic oils like Shell Helix Ultra can last up to 10,000 kilometers before needing a change.
There's no fixed answer for oil change intervals. After reviewing multiple vehicle manuals, the key factors are your driving habits and environment. Conventional mineral oil typically requires changes every 5,000 to 7,500 kilometers or six months – it oxidizes and degrades faster in high temperatures, reducing protective properties. Synthetic oil can last 10,000 to 15,000 kilometers or a year, offering better fluidity and cleaning power. But if you're a city commuter with frequent stop-and-go traffic putting heavy load on the engine, consider changing around 8,000 kilometers. Regularly check the dipstick: low oil level or dark black color signals it's time. Extending intervals risks sludge buildup that accelerates engine wear, increases fuel consumption, and may cause malfunctions. When performing maintenance, always replace the oil filter simultaneously to ensure full system cleanliness – this small cost isn't worth skipping.
