How much fuel does a car consume when idling for one hour?
1 Answers
Based on the current average vehicle displacement of 1.5-1.8 liters, the fuel consumption during idling is approximately 1-2 liters per hour. Here are the relevant details: 1. Idle speed is related to displacement: Generally, gasoline vehicles idle at around 800 RPM, while diesel vehicles idle at around 500 RPM. The higher the vehicle's displacement, the more fuel it consumes per hour during idling. Therefore, when waiting for someone for a long time, it's better to turn off the engine rather than let it idle for extended periods. 2. Hazards of idling: Prolonged idling not only increases fuel consumption but also leads to incomplete fuel combustion, resulting in carbon deposits. 3. Auto start-stop feature: For owners who are particularly concerned about fuel consumption, choosing a vehicle equipped with an auto start-stop function is advisable. Many modern vehicles now come with this feature. 4. Function of auto start-stop: At traffic lights, the vehicle can automatically shut off the engine to save fuel. However, during engine shutdown, the air conditioning system's cooling function stops and switches to fan mode. To restart the engine, simply press the accelerator lightly, and the engine will automatically ignite. In stop-and-go city driving, the auto start-stop feature can save a significant amount of fuel.
