What is the fuel consumption of a 1.5L engine idling with AC on for one hour?

[DelMalachi]

1.5L displacement vehicles consume approximately 2.0 liters of fuel when idling for one hour. Below is relevant information about vehicle idling: 1. Purpose of vehicle idling: Idling refers to an operating condition where the engine runs in neutral gear. The engine speed during idling is called idle speed, which can be adjusted by modifying throttle openings. Idling essentially means the engine is 'producing power without doing work.' When the accelerator pedal is fully released while the engine is running, the engine enters idle state. 2. Causes of unstable idling: Direct causes include dirty, worn, or improperly installed mechanical components that affect cylinder power output, leading to imbalance among cylinders and resulting in unstable idling. Indirect causes involve abnormalities in the engine's electronic control system, causing poor combustion mixture and difficulty in balancing cylinder power, which leads to unstable idling.