How Many Kilometers Should Shell Semi-Synthetic Oil Be Changed?
2 Answers
When driving in most cities across China, Shell semi-synthetic oil can be changed every 7,500 kilometers or every six months. However, since data is static, it is still necessary to decide based on actual conditions. The methods to determine whether the oil needs to be changed are as follows: Observe the color of the oil: First, observe the color of the oil. If you notice that the color has darkened significantly compared to before, or even find visible impurities floating on the surface, it indicates that the oil is no longer usable and needs to be replaced. Noticeable engine vibration: Second, you can rely on your driving experience to judge. If you feel that the engine is vibrating noticeably and the engine noise has increased, it is time to change the oil as soon as possible.
I've been using Shell semi-synthetic oil for several years, mainly for urban commuting with frequent traffic congestion. According to the vehicle manual and my experience, the recommended oil change interval is between 7,500 to 8,000 kilometers or every 6 months, whichever comes first. If I frequently drive on mountain roads or dusty routes, I change the oil earlier at around 5,000 kilometers because the oil deteriorates faster. During the high temperatures of summer, the oil quality degrades, so I check the dipstick every three months and use test strips to see if the oil has turned black. Once, I forgot to change the oil, and the engine noise increased, nearly causing a breakdown, but I addressed it in time. Developing the habit of recording mileage is crucial to prevent engine damage.
