How long should you park before turning off the engine?

[VonDaniela]

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.