Can 10w40 Engine Oil Be Used in Winter?

[Cora]

10w40 engine oil can be used in winter, but it depends on the lowest winter temperature in the region where the vehicle is operated. Here is some information about 10w40: 1. The first two digits represent the low-temperature startup performance index. The smaller the value, the better the low-temperature startup performance. The number 10 indicates that it can ensure normal startup at -25°C. 2. The letter W stands for Winter, indicating that this oil is suitable for winter use. 3. The number 40 represents the viscosity of the oil. The larger the number, the higher the viscosity, and the better the high-temperature mobility and high-temperature shear resistance.