Is Idling Harmful to Cars?

1 Answers
OBrantley
07/29/25 3:44pm
Idling is harmful to cars, and the hazards include: 1. Increased engine carbon deposits; 2. Shortened engine lifespan; 3. Overly rich air-fuel mixture in the engine, which can easily damage the three-way catalytic converter; 4. Loosening of the vehicle's braking system, increasing the risk of accidents; 5. Increased exhaust emissions from the vehicle's cylinders. Car idling refers to an operating condition where the engine runs without load, only overcoming internal friction resistance without outputting power, maintaining the minimum stable engine speed. The idle speed can be adjusted by modifying the throttle opening and idle fuel supply.
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