How long should a car warm up before starting?

[Evelyn]

Car warm-up before starting can be done within 30 seconds to one minute after ignition. Below are the daily maintenance and operational precautions for vehicles: Daily vehicle maintenance: Regularly change engine oil, replace the three filters (air, oil, and fuel), and periodically add power steering fluid, brake fluid, and coolant. Frequently monitor and check the condition of engine oil, brake fluid, and antifreeze. Additionally, keep the engine clean by regular washing. Driving precautions: When starting a cold engine, allow the car to idle for about one and a half minutes to give it sufficient warm-up time. Extend the engine shutdown by half a minute after parking. The engine remains at a high temperature after stopping; shutting it off immediately causes the cooling fan to stop right away, which is not conducive to engine cooling.