How to Check Your Car's Fuel Consumption per 100 Kilometers?
3 Answers
Fuel consumption per 100 kilometers is calculated by dividing the amount of fuel used by the distance traveled, which gives the fuel consumption per kilometer, and then multiplying by 100. Below is relevant information about fuel consumption per 100 kilometers: 1. Calculation formula: Fuel consumption per 100 kilometers = Fuel consumption (liters) ÷ Distance traveled (kilometers) × 100. 2. Related factors: Fuel consumption per 100 kilometers is closely related to the car's age and condition, engine displacement, curb weight, and load. Generally, the older the car and the larger the engine displacement, the higher the fuel consumption per 100 kilometers. Opening windows for cooling during high-speed driving in summer may not save fuel, as the drag coefficient increases, leading to higher fuel consumption.
I usually like to observe fuel consumption changes while driving. A simple method is manual calculation: fill up the tank until the pump automatically stops, then note the mileage and fuel amount; drive for a period, say around 200 kilometers, and refill to the automatic stop again, recording the new mileage and fuel added. Then calculate the difference in kilometers driven, divide by the fuel added, and multiply by 100 to get the fuel consumption per 100 kilometers. For example, if you drive 300 kilometers and add 25 liters of fuel, the consumption is (25/300)*100≈8.3 liters. My car doesn't have an advanced display, so I use this method. Once it becomes a habit, I can quickly spot anomalies, like a sudden increase in fuel consumption, which might indicate a tire leak or a dirty air filter that needs prompt replacement. I keep records in a memo for easy comparison, and doing this regularly can also save some money. When driving in the city with high fuel consumption, I pay attention to smooth acceleration and deceleration to bring it down a bit.
As someone who frequents car forums, I often test fuel consumption and use in-car features: New models usually come with a built-in trip computer. Simply switch to the information screen and select the average fuel consumption mode to view real-time data, making it easy to track fuel consumption per 100 kilometers. For older cars without this feature, use mobile apps like Fuelio to input fuel refill amounts and mileage, which automatically calculates more accurate results. I've monitored under different road conditions—highway cruising consumes around 6 liters, while urban congestion can spike to 10 liters. The app records and analyzes trends, alerting to potential issues like fuel line blockages. A tip: always refuel to full and reset the trip meter for more reliable data. Don’t ignore fuel consumption fluctuations, as unusually high readings may indicate spark plug wear affecting fuel efficiency.
