How often should engine oil be changed if the car is not driven?
1 Answers
One year or eight months. It mainly depends on the type of engine oil used in the car. Here is the relevant information: 1. When using full synthetic oil: The recommended replacement cycle for full synthetic oil is one year or 10,000 kilometers. Because full synthetic oil performs better and has stronger oxidation resistance, its usage cycle can be longer. The replacement cycle for semi-synthetic oil is eight months or 7,500 kilometers, while mineral oil only has a service life of six months or 5,000 kilometers. This cycle must take both time and mileage into account. As long as either one reaches the limit, the oil needs to be changed, and you should not wait until both conditions are met. The performance of engine oil is not only about oxidation resistance but also includes many other aspects, such as cooling ability, smoothness, antifreeze performance, cleaning ability, etc. In these performance aspects, synthetic oil is also much better than mineral oil. It is precisely because synthetic oil has these good characteristics that it can have a longer replacement cycle and better protection. 2. When using semi-synthetic oil: Semi-synthetic oil, because it contains a certain proportion of mineral oil, performs worse than full synthetic oil, so the replacement cycle is shorter. However, it is also cheaper and more economical.
