How to Understand Car Fuel Consumption?
2 Answers
Fuel consumption refers to the amount of gasoline burned by a car per 100 kilometers driven. For example, when people say "8 liters," it means the car consumes 8 liters of fuel per 100 kilometers. The method to calculate fuel consumption per 100 kilometers is: Fuel consumed (liters) ÷ Distance traveled (KM) × 100 = L/100KM. Relevant information about fuel consumption is as follows: 1. Introduction: Fuel consumption generally refers to constant-speed fuel consumption, which is the vehicle's fuel consumption per 100 kilometers obtained in fuel consumption tests under constant-speed driving conditions as specified by national standards for certain types of vehicles. 2. Testing Methods: The test can be conducted on the road or on a chassis dynamometer, and then the fuel consumption per 100 kilometers is determined through the "flow meter method" or "carbon balance method."
To understand a car's fuel consumption, I start by keeping a daily driving log. Every time I fill up the tank, I record the mileage and the amount of fuel added, then use a mobile app to calculate the average fuel consumption per 100 kilometers. This method is simple and accurate, helping me realize that my fuel consumption varies depending on driving habits. For example, maintaining a steady speed on the highway results in low fuel consumption, but in city traffic with frequent stops or sudden acceleration, the fuel usage spikes. I've also noticed that low tire pressure increases fuel consumption, so I regularly check and maintain the tire pressure at the recommended level. Here’s a handy tip: prolonged engine warm-up also wastes fuel, so in winter, I start driving soon after starting the engine. Through these observations, I not only save on fuel costs but also become more familiar with my car's performance. In short, manual logging combined with app analysis is a reliable method worth trying.
