Does idling for several hours harm the car?

1 Answers
SanSawyer
07/30/25 6:31am
Idling a car for one hour can cause certain damage to the vehicle. 1. Engine carbon deposits: Prolonged or frequent idling can lead to incomplete fuel combustion, resulting in carbon buildup inside the engine cylinders, affecting the throttle valve, causing water accumulation in the exhaust pipe, and lowering oil pressure. Over time, this reduces the lubrication effect of the oil on the engine, accelerating engine wear. 2. High fuel consumption during prolonged idling: The fuel consumption of idling for one hour is equivalent to driving 15-30 kilometers, varying by vehicle model. When the antifreeze temperature drops below 60°C, combustion byproducts in the cylinders may react chemically with the moisture in the antifreeze, forming acidic substances that accelerate cylinder corrosion. Idling is highly uneconomical for vehicles and can even cause damage.
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