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How long should you park before turning off the engine?

3 Answers
VonDaniela
07/29/25 8:54pm
You should turn off the engine if you park for more than two minutes, as it is more fuel-efficient and appropriate to do so after parking for over 2 minutes. Effects of parking without turning off the engine: When a vehicle remains parked with the engine running for an extended period, the engine continuously operates at low RPM. This condition makes the pistons and valves more prone to carbon buildup, leading to unstable idling and other adverse effects on the engine's performance. It may even impact the engine's lifespan. Precautions when turning off the engine: Check if the headlights are turned off, as they are directly powered by the battery and will remain on as long as the switch is activated, regardless of whether the key is inserted or not. Also, ensure the turn signals are reset. In some vehicles, the turn signals also function as parking lights. When the turn signal is activated with the engine off, the corresponding bulb will stay lit, serving as a warning to pedestrians when parked on the roadside at night.
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BrodyLee
08/15/25 6:36pm
I'm particularly concerned about environmental issues when driving. How long should I turn off the engine after stopping? I've thought about it, and if the stop lasts more than 30 seconds, it's definitely worth turning off the engine because idling not only wastes fuel but also increases exhaust emissions, worsening air pollution. Turning off the engine for short periods, like over 20 seconds, is actually fuel-efficient and effective; modern cars start quickly, and their batteries are durable, so it won't harm the vehicle. Moreover, climate change is a global issue, and small habits like turning off the engine can add up. Once, I turned off the engine during heavy traffic in the city center, saving on fuel costs and feeling more at ease. However, safety is key—don't turn off the engine in busy traffic areas where delayed restarts could be risky. Overall, adopting this habit helps the planet and makes driving more sustainable.
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Kathryn
10/16/25 7:13am
I've been a driver for many years, and experience has taught me that whether to turn off the engine depends on the situation. For short stops like waiting at a red light for just half a minute, don't turn off the engine, as frequent starts can wear out the starter. But if the stop lasts more than a minute, like waiting for someone or being stuck in traffic, turning off the engine can save fuel, protect the engine, and reduce carbon buildup. I've also seen fellow drivers experience engine overheating due to prolonged idling. With today's advanced vehicle technology, automatic start-stop systems are a big help; for manual cars, I'm used to pressing the ignition button casually. This not only saves money but also extends the lifespan of components. In short, just handle it flexibly based on your personal driving conditions.
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