What are the damages to a car if it idles for seven or eight hours?

[LuciaAnn]

Prolonged idling of a vehicle in place will not cause fatal damage to the vehicle, but it will consume a large amount of fuel and also lead to carbon buildup in the engine. Hazards of prolonged idling: During idling, the oil pressure is relatively low, affecting the lubrication effect of the oil on the engine and accelerating the wear of internal engine components; idling can cause incomplete fuel combustion, making it easier for carbon deposits to form on the throttle valve; when the coolant temperature drops below 60 degrees Celsius, combustion byproducts in the cylinders may react chemically with the moisture in the coolant, forming acidic substances that accelerate cylinder corrosion. How to handle prolonged idling: If the car has been idling in place for seven or eight hours without being turned off, it should be shut down as soon as possible. The vehicle consumes fuel even when idling, so first check whether there is enough fuel left in the car. If the fuel level is low, it should be refueled promptly. Next, check if the water temperature is too high, as the engine's cooling capacity decreases when idling in place. If the water temperature is too high, the engine should be turned off immediately to allow it to cool down.