What is the correct way to warm up a car?
4 Answers
The correct method to warm up a car is: let it idle for about 1 minute, then drive slowly until the water temperature reaches normal levels. During slow driving, maintain a low speed and keep the engine RPM below 3000 to 3500, generally around 2000 RPM. Avoid stepping hard on the accelerator (except in special circumstances), as this can cause significant damage to various parts of the engine. This is because the lubricating oil or grease for various components can only fully circulate when the vehicle is in motion. Therefore, avoid idling for too long, and systems such as the steering, braking, differential, and suspension require some movement to adapt to working conditions. The primary purpose of warming up the car is to circulate the oil from the engine sump to all parts of the engine in advance.
I've found that the best way to warm up a car is to start the engine and let it idle for about half a minute, then drive slowly for a few minutes. Modern vehicle engines are precisely designed, and prolonged idling not only wastes gasoline but also increases harmful emissions. The engine warms up faster when driven at low speeds, allowing the oil to circulate effectively and lubricate all components, preventing wear. This method also applies in winter—just wait briefly after starting before moving off, with no need to sit in the car for over ten minutes. I've noticed many experienced drivers have the habit of long warm-ups, which can actually lead to carbon buildup and increased fuel consumption. This simple and reliable method protects the environment while also saving money.
I've been driving for over ten years, and my warm-up routine is to start the engine, wait about twenty seconds, then shift gears and drive out slowly. This method is the most time-efficient for urban commuting, as the engine warms up more evenly while driving. Prolonged idling actually increases the risk of malfunctions. I usually adjust slightly based on temperature, waiting an extra ten seconds in cold weather, but I never recommend idling for more than one minute. This approach protects the vehicle while reducing pollution, and many friends in conversations often mention its practicality—no complex equipment checks needed.
I advocate that warming up the vehicle should not take too long. After starting the engine and idling for a short while, it's best to start moving. Idling for several extra minutes not only offers no benefit but also wastes fuel and emits more harmful gases. I always pay attention to this when using my car, keeping the warm-up time within one minute before setting off, which is both energy-efficient and environmentally friendly. A brief warm-up followed by low-speed driving is sufficient for temperature rise, and it actually prolongs the engine's lifespan.
