How to calculate fuel consumption based on mileage?
2 Answers
After refueling, reset the trip mileage and convert the amount into fuel volume based on the current fuel price. Repeat this process each time you refuel. Fuel consumption per 100 kilometers = Volume of fuel (liters) / Distance the car can travel with that amount of fuel (kilometers) X100. Reset the mileage or record the information. After using the car for a period, refuel until the pump stops automatically. Divide by the mileage between two refuels and multiply by one hundred to get the actual fuel consumption.
I've been driving for over a decade, and calculating fuel consumption is a fundamental skill that's also very practical. First, fill up the tank completely and record the odometer reading as A kilometers. Then drive normally to work or for leisure until the fuel gauge is nearly empty, and fill up the tank again. The amount of fuel V liters you add this time is the fuel you've consumed. Note the new odometer reading B kilometers. The distance traveled is B-A kilometers. Simply divide: (V divided by (B-A)) multiplied by 100 gives you the fuel consumption per 100 kilometers (unit: L/100km). I prefer to calculate it several times and take the average for better accuracy. This not only helps you understand your car's condition but also saves money; if the fuel consumption abnormally increases, say from 8 liters to 10 liters, it might indicate low tire pressure or a clogged air filter, signaling it's time for a check-up and maintenance. In daily driving, try to avoid congested routes, and maintaining a speed of around 80km/h on highways is most fuel-efficient—I can save about 20% this way. Remember to keep a small notebook to record mileage and fuel amounts; once you get used to it, it becomes very convenient for analyzing driving habits.