Does a Car Consume Fuel at Idle?

1 Answers
DelSilas
07/24/25 3:53pm
Yes, a car consumes fuel at idle. Based on the current average vehicle displacement of 1.5-1.8 liters, the fuel consumption at idle is approximately 1-2 liters per hour. Additionally, if the air conditioning is turned on during summer, the fuel consumption at idle will be even higher. The harms of car idling are as follows: 1. Increased engine carbon deposits. 2. Shortened engine lifespan. 3. Overly rich air-fuel mixture in the engine, which can easily damage the catalytic converter. 4. Loosening of the vehicle's braking system, increasing the risk of accidents. 5. Increased exhaust emissions from the vehicle's cylinders.
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