What to Do If You Forget to Turn Off the Engine Overnight?

[BlakelyLee]

Open the car windows, turn on the external circulation, and set the fan to maximum speed to expel harmful gases first. To clear carbon deposits, drive on the highway to increase the engine speed, which can help remove carbon buildup.

[BryceDella]

I also sometimes forget to turn off the engine when driving, which is really annoying. First, you need to stay calm. Leaving the engine idling all night will definitely consume a lot of fuel and may also drain the battery. Before starting the car, check the fuel gauge. If it's empty, ask a friend to bring some fuel or call for roadside assistance—don’t force-start the engine and risk damaging it. If the battery is dead, the car might not start, so use jumper cables to charge it from another car. Also, check for any strange smells, as the engine could be at risk of damage from overheating. After dealing with the issue, it’s best to visit a 4S shop for a full inspection of the spark plugs and exhaust pipe to prevent carbon buildup. Develop a habit of double-checking before leaving the car, and use your phone’s reminder feature to avoid forgetting in the future.