Is SL Oil Fully Synthetic Oil?

[AxelRose]

SL oil is not fully synthetic oil, it is semi-synthetic oil. The introduction of the replacement cycle and shelf life of semi-synthetic oil is as follows: Replacement cycle of semi-synthetic oil: In most cities in China, semi-synthetic oil can be replaced every 7,500 kilometers or 9 months. If there is too much dust in the air, the temperature is very low (-20 degrees Celsius), or the car is driven short distances for a long time (each trip is within 8 kilometers), it is recommended to increase the oil change frequency to 5,000 kilometers or half a year. Shelf life of semi-synthetic oil: The state clearly stipulates that the shelf life of oil under sealed conditions is basically within 5 years, and the shelf life of semi-synthetic oil is also within this range. However, semi-synthetic oil that has been opened will deteriorate faster, so it is best to use it within half a year. Of course, how long semi-synthetic oil takes to deteriorate also depends on the storage environment. The greater the temperature difference and humidity, the faster the oil deteriorates.