How Much Fuel Does an Engine Consume at Idle?

[Antonio]

An engine consumes approximately one liter of fuel per hour at idle. Below are specific details about car idling: 1. High Idle Speed: The hazards of high idle speed include increased fuel consumption, elevated engine operating temperature, and accelerated machine wear. 2. Low Idle Speed: The hazards of low idle speed include stalling during startup, which can damage the engine and starter if it occurs frequently. Additionally, excessively low idle speed may lead to stalling while driving, long-term carbon buildup in the engine cylinders, and reduced acceleration power. 3. Prerequisites for Adjusting Idle Speed: The engine temperature should be normal, valve clearance appropriate, ignition system functioning properly, all pipes well-sealed, choke fully open, and throttle able to close tightly, among other conditions.