What are the reasons for difficult car starting in winter?

[AliceRose]

There are several main reasons why cars have difficulty starting in winter: 1. Engine oil viscosity issue: The smaller the number before the "W" in the engine oil specification, the better the oil's fluidity in winter. Therefore, it's advisable to switch to oil with better fluidity before winter. 2. Battery problem: Due to extremely low temperatures in northern winters, the battery's capacity may become too low because of the cold environment. When this happens, the battery's activity decreases, resulting in insufficient voltage to start the vehicle, thus causing starting difficulties. 3. Owners should pay more attention to the maintenance of internal engine components during routine servicing, such as replacing spark plugs and ignition coils that have reached their service life. This practice not only helps maintain good vehicle condition but also ensures normal car starting during winter.