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How often should engine oil be changed in a car, in terms of kilometers?
Release time:
2025-12-05 17:13
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【Summary Description】
The term "lubrication" addresses the friction problem in classical mechanics. Today, we have relativity and quantum mechanics, yet thousands of years of life have not freed us from the constraints of friction.
First, it depends on what kind of engine oil you are using! Engine oil can be divided into full synthetic oil, semi-synthetic oil, mineral oil, etc.
1. Full synthetic oil: Common ones include Mobil 1, Castrol Edge, Shell Helix Ultra, etc. This type of oil can generally last for 10,000 to 12,000 kilometers or one year without any issues, mainly depending on the driving conditions. Under normal circumstances, it can run about 10,000 kilometers!
2. Semi-synthetic oil: Common ones include Mobil Super 2000, Castrol GTX Magnatec, Shell Helix HX7, etc. This type of oil can last around 8,000 kilometers without any problems.
3. Mineral oil: Common ones include Mobil Super 1000, Castrol GTX, Shell Helix HX5, etc. This type of oil generally lasts about 5,000 kilometers or six months!
In theory, the owner's manual will tell you the oil change interval for each maintenance, usually starting at 5,000 kilometers or six months, and then 10,000 kilometers or one year for subsequent changes. However, in actual use, there can be quite a few differences, which will vary based on usage conditions or environments. For example, if you have driven 2,000 kilometers in the city, it is obviously unnecessary to change the oil, but if you went on a road trip and drove 2,000 kilometers experiencing various road conditions, it is recommended to change the oil afterward.
Additionally, the type of oil used can also vary. Nowadays, with the widespread use of turbocharged engines, it is recommended to use full synthetic oil. Some people may feel that mineral oil is sufficient for their level of vehicle, and I do not deny that, but considering the durability of engine performance, I still recommend full synthetic oil. I won't elaborate on the differences between the two types of oil. Also, regarding the phenomenon of burning oil, many car owners occasionally add a bit of new oil. From the perspective of the oil itself, this method is actually not advisable, as it mixes new and old oil, which cannot achieve the true purpose of an oil change in terms of performance. Therefore, the oil change interval should still depend on your vehicle's usage environment, frequency, and time.
