Why is it difficult to start the car in cold weather?

[OAddyson]

The reasons why it is difficult to start the car in cold weather: 1. Poor oil fluidity: Oil fluidity is an important factor affecting cold starts, especially in winter when oil fluidity deteriorates, leading to increased friction resistance during cold starts; 2. Car battery: The charging and discharging performance of the car battery decreases in low-temperature environments. When the power released by the battery is insufficient to meet the starter's demand, the car becomes difficult to start, resulting in reduced speed and difficulty in starting; 3. Carbon deposits in the car: Carbon deposits can occur in various parts of the car, such as the throttle valve, fuel injector, and spark plugs. When carbon deposits form in these parts, cold starts become relatively more difficult. In winter, the already low ambient temperature, combined with blockages in the throttle valve and fuel injector, reduces the atomization effect of gasoline, affecting the normal start of the engine.