How Often Should Full Synthetic Oil Be Maintained?
3 Answers
It is recommended to replace full synthetic oil every 10,000 kilometers or once a year. Full synthetic oil is chemically engineered and represents one of the highest-quality types of motor oil available. Initially developed for aircraft use, full synthetic oil is perfectly suitable for motor vehicles. Here are some additional details: Synthetic Oil: Synthetic oil is chemically synthesized, and its composition can be adjusted based on its intended use. The development of synthetic oil began in the 1930s, driven by the demanding requirements of aircraft engines, which necessitated a higher-performance lubricant, prompting chemical plants to start researching and producing synthetic oil.
I heard a senior mechanic talk about this before. Fully synthetic oil can theoretically last for 10,000 kilometers or one year, but don’t rigidly stick to that number. I’ve personally experienced this with my own car: daily city traffic with frequent stops and starts, and after 8,000 kilometers, I clearly felt the throttle becoming sluggish. Later, I learned that under such harsh driving conditions, the oil deteriorates faster. If you often drive on highways or in a particularly clean environment, you can extend it to 12,000 kilometers. The key is to monitor the oil’s condition—if it turns black, loses viscosity, or emits a burnt smell, don’t hesitate to change it immediately. Also, keep an eye on the oil filter’s lifespan; don’t just focus on the oil and forget about it. Car maintenance shouldn’t be too dogmatic—what works best for you is what matters most.
I've researched extensively, and fully synthetic oil is indeed durable, but the specific oil change interval depends on actual driving conditions. If you frequently take short trips, driving only about ten minutes each time without the engine fully warming up, this makes it easier for condensation and unburned fuel residues to accumulate in the engine, accelerating oil oxidation. In such cases, you might need to change it around 8,000 kilometers. On the other hand, those who consistently drive long distances can stretch it to about 12,000 kilometers. Brand differences also play a role, with some European brands having higher certification standards. Don't just rely on the odometer; regularly checking the dipstick to observe oil viscosity and color changes is the most reliable method. If you notice any abnormalities, change it ahead of schedule.
