The car stops at MINUS 20 degrees in winter for a few days and needs to go out for a walk.

Cold start-up and flameout problems. The problem of engine oil is a common problem in automobile maintenance, and it is also the easiest problem to check. Change the oil model or try to refuel somewhere else. Too much carbon deposit on the accelerator is also the main reason for the unstable idle speed and flameout of the car. Go to a professional repair shop or 4S shop to clean the throttle.

Security risks:

Generally speaking, it is difficult to start a car in winter, and most of the cases are caused by battery loss or expiration of battery service life. When the battery is low, the speed is weak when starting the car, and only a click sound is heard, and then the click sound will gradually become a hiss sound when igniting. Do not ignite continuously to avoid battery exhaustion.

In winter, vehicles should not be parked for a long time. Generally, the vehicle should be driven out after a week of parking, which can effectively replenish the battery. The nominal service life of the battery is generally 2-3 years, and the maintenance-free battery must be replaced after 2-3 years.