Can You Turn Off the Engine Immediately After a Long Trip?
2 Answers
You can turn off the engine immediately after a long trip, but it is better to let it idle for 1 to 2 minutes to help cool down the turbo. Here are some things to pay attention to after a long trip: Vehicle Inspection: If you don’t have time or don’t plan to go for maintenance, you should inspect the vehicle yourself. Install a Dash Cam: A dash cam ensures driving safety by recording the driving process and providing evidence in case of emergencies like fraud attempts. Complete Documentation: Documents should not only include the vehicle license and driver’s license but also your ID card, bank card, insurance certificate, and vehicle compliance label. Onboard Tools: In addition to the manufacturer-provided jack and spare tire, common onboard tools include a tire wrench, tire pressure gauge, and it’s best to bring adjustable wrenches, pliers, and screwdrivers (Phillips and flathead).
I frequently drive long distances, and the engine temperature soars after prolonged operation, especially in turbocharged cars. If you turn off the engine immediately, the oil circulation stops, causing the turbo bearings to overheat, seize, or even fail. Although the cooling fan may sometimes start automatically, idling allows it to dissipate heat more effectively, ensuring the fan operates evenly. Additionally, internal engine components like the cylinder block and exhaust pipes can suffer from metal fatigue and deformation if heat dissipation is insufficient under high temperatures, shortening their lifespan over time. I've made it a habit to let the engine idle for about two minutes before shutting it off—this ensures safety and protects the car. In winter, you might wait a bit less, but in summer, it's absolutely necessary to wait longer. Don't cut corners; this is crucial for your car's overall health.
