Can 10w40 engine oil be used in winter?
1 Answers
10w40 can be used in winter. 10w40 engine oil is generally suitable for temperatures ranging from -25°C to 40°C. In southern regions, engine oil with a viscosity grade of 30 is commonly used; in northern regions, 10W or 15W engine oil is required, and in extremely cold areas, 5W oil may be necessary. The specific details of 10w40 engine oil are as follows: Meaning of 10w: The number 10 represents the low-temperature startup performance indicator. The smaller the value, the better the low-temperature startup performance. A value of 10 indicates that the oil can ensure normal startup even at -25°C. The letter W stands for Winter, indicating that this oil is suitable for winter use. Meaning of 40: The number 40 represents the oil viscosity. The higher the value, the greater the oil's viscosity, and the better its high-temperature kinematic viscosity and high-temperature shear resistance.