Impact of High Oil Viscosity on Vehicles

[LeoDella]

Here is a related introduction to the impact of high oil viscosity on vehicles: 1. The effect of oil viscosity on the engine: The primary function of oil is to reduce engine friction. For engines with high torque and high speed, high-viscosity oil allows the engine to operate smoothly. However, for engines with low speed and low torque, high-viscosity oil can easily become a burden, not only failing to reduce engine friction but also likely increasing friction resistance. 2. Different oils for different seasons: High-viscosity oil is suitable for summer but must not be used in winter. Because the oil viscosity is already high in cold weather, the oil pump may struggle to draw oil through the filter screen of the oil pan during cold starts. Therefore, it is crucial not to use high-viscosity oil in winter and to choose the appropriate oil wisely.