Is it necessary to warm up the car in summer?
2 Answers
It is necessary to warm up the car in summer. The following are the relevant introductions about warming up the car: 1. Reasons: (1) After the car has been parked for a long time, the engine oil flows back to the bottom of the engine, leaving the upper part without oil and lacking lubrication. (2) Before the engine reaches its operating temperature, the fuel supply system cannot effectively vaporize gasoline completely due to the low temperature. (3) When the car is cold, the gear oil flows to the lower part of the transmission. Only when driving, the gear oil at the bottom is brought up by the rotation of the gears to lubricate the upper part. 2. Method: After starting the car, wait for 30 seconds to one minute before driving. During this time, avoid driving at high RPMs and maintain a low speed, with the engine RPM generally kept at 2000.
As a seasoned driver with over a decade of experience, I've personally witnessed the evolution of engine technology. Older vehicles indeed required a few minutes of warm-up during cold starts to allow oil circulation and prevent component wear. However, modern cars are entirely different—summer's high temperatures mean engines warm up quickly. After starting, waiting about 30 seconds for the RPM to stabilize is sufficient before driving. Prolonged idling merely wastes fuel, increases emissions, and strains the AC system, especially in hot weather. My own practice is to drive slowly for 1-2 km immediately after starting, which protects the engine more effectively than idling while also saving fuel. The key is regular maintenance, such as checking oil and coolant levels, eliminating excessive warm-up concerns. In short, summer warm-ups aren't necessary—simple measures suffice.
