What Type of Engine Oil Should Be Used in Northern Winters?

[JocelynDella]

In northern winters, 0W30 engine oil should be used, as a slightly lower viscosity is more suitable. For temperatures as low as -35°C, SAE 0W grade oil is recommended. The SAE lubricant viscosity classification for winter oils includes grades such as 0W, 5W, 10W, 15W, 20W, and 25W. The symbol 'W' stands for winter, and the smaller the number before 'W', the lower the low-temperature viscosity and the better the low-temperature fluidity. During summer high temperatures, higher viscosity grade oil is required to enhance lubrication, as rising temperatures reduce oil viscosity. Using higher viscosity oil can compensate for this reduction. Different environmental temperatures require different viscosity grades.