How often should 0w-20 engine oil be changed?
2 Answers
Conventional engine oil is recommended to be changed every 5,000 kilometers or every six months for better reliability. Engine oils are categorized into three types: conventional mineral oil, semi-synthetic oil, and full synthetic oil. Below is an introduction to engine oils: 1. Mineral oil: Mineral oil is extracted from minerals, is relatively viscous, and is more affordable. It provides basic protection and can be considered the most fundamental type of engine oil. 2. Synthetic oil: Synthetic oil is artificially formulated through chemical processes. Full synthetic oil offers the best performance. If your vehicle has a turbocharged (T) engine, using full synthetic oil provides excellent smoothness and cleanliness, with a longer replacement interval of up to one year or 10,000 kilometers. 3. Semi-synthetic oil: Semi-synthetic oil is a blend of synthetic and mineral oils, offering performance that falls between the two. Its price and replacement cycle are also intermediate. For ordinary naturally aspirated engines, semi-synthetic oil can be used.
To be honest, I just switched to 0W-20 oil for my car, so I've paid special attention to this issue. Generally speaking, the replacement interval should follow the vehicle manual's recommendation—it's the most authoritative reference since different car brands may vary. Full synthetic oils like 0W-20 are usually more durable. For regular driving like mine, the manual often suggests changing it every 5,000 to 7,500 kilometers or every 6 months. If your car has a monitoring system, it will alert you automatically. But don’t be too rigid—driving habits matter too. For example, frequent short trips or stop-and-go traffic can dirty the oil faster, so you should change it earlier. I’ve also tried checking the oil level myself using the dipstick to see if the color turns dark black or to smell it—if it feels off, change the oil immediately. Remember, delaying oil changes for too long can cause engine wear, and repairs will cost a fortune. Regular oil changes not only save hassle but also keep your car running smoother and improve safety.
