Should the Lingdong use 5w30 or 5w40

[SanJayden]

Lingdong can use both types of oil. Here is the relevant content introduction: 1. These two types of oil represent different viscosities of oil. The reason why different oils are used in cars is mainly because the types of oil are different, and the functions of the oil are also different. 2. The number before w indicates the cold start performance of the engine oil. The lower the value before w, the easier it is to start the engine in cold weather. The number after w indicates the viscosity of the engine oil. High-viscosity oil can better protect the engine. For oil used in cars, the higher the viscosity of the oil, the better the sealing performance of the oil. 3. In the process of driving a car, the higher the viscosity of the oil used, the smaller the noise generated by the engine during operation. There are three types of oil used in cars, namely mineral oil, semi-synthetic oil, and fully synthetic oil.