Does the new car use a hot car in winter？

When driving a new car in winter, whether it is necessary to warm it up is a concern of many car owners. The correct way to warm up the car should be: start the car first, but keep the air conditioner off; Then let the vehicle warm up at idle speed for 30 seconds to 1 minute; Then start driving slowly, and when the engine water temperature gauge rises by 1 to 2 squares, you can drive normally and turn on the air conditioner. So, why do new cars need hot cars in winter? This is because after the car is parked for a long time, the engine oil will flow back to the oil pan, and the engine oil supply system that has not reached the working temperature can not effectively vaporize the gasoline completely. In addition, gear oil will also flow to the lower half of the gearbox when parking, resulting in the upper half of the gearbox not being lubricated when the car is cold. Therefore, the hot car can help the engine and gearbox reach the appropriate working temperature, thus ensuring the normal operation of the car.