Why Do Cars Consume More Fuel in Winter?

[LaAdrian]

Cars consume more fuel in winter than in summer for the following reasons: During winter, the external temperature is extremely low, especially in northern regions where it can drop below -20°C. After a cold start, the vehicle takes longer to reach the normal engine operating temperature (above 85°C). Therefore, the engine control unit commands the fuel injectors to supply more gasoline to the engine cylinders to achieve this temperature. As a result, vehicles use more fuel in winter compared to other seasons. More information about engine oil is as follows: 1. In cold winter, the fluidity of engine oil deteriorates, leading to higher fuel consumption. This is also related to temperature. At very low temperatures, the density of engine oil increases, and its fluidity decreases, especially for certain grades of oil that are inherently more viscous. 2. Poor oil fluidity hinders engine operation. To reach normal working conditions, the engine must achieve a certain operating temperature to improve oil fluidity. This prolongs the warm-up time of the engine, naturally increasing the vehicle's fuel consumption.