What is the normal range for instantaneous fuel consumption?
1 Answers
Modern electronic fuel injection engines can cut off fuel supply during coasting, so the minimum instantaneous fuel consumption is 0. The maximum is essentially the upper limit set by the vehicle model—some cars have a limit of 49.9, while others may go up to 99.9. Below is relevant information: Introduction: Instantaneous fuel consumption indicates the fuel usage at a specific moment. The display unit is "liters per 100 kilometers (L/100Km)" when the vehicle is in motion, and "liters per hour (L/H)" when the engine is running but the vehicle is stationary. Significance of instantaneous fuel consumption: Monitoring instantaneous fuel consumption is crucial for understanding the engine's fuel usage under different conditions. For example, it helps determine fuel consumption when the vehicle is stationary with the engine idling. It also allows you to assess the fuel consumption per 100 kilometers at various speeds (aerodynamic drag, which significantly impacts fuel consumption, is proportional to the square of the speed), helping identify the vehicle's most fuel-efficient speed. For vehicles with computer-controlled fuel injection, instantaneous fuel consumption can show "0" during gear coasting (when the fuel injectors stop supplying fuel).