What is the calculation formula for a car's fuel consumption per 100 kilometers?
2 Answers
The calculation method for a car's fuel consumption per 100 kilometers: Fuel consumption per 100 kilometers equals fuel consumption (liters) divided by driving distance (kilometers) multiplied by 100. The fuel consumption per 100 kilometers indicated in the manuals of domestic cars is generally the constant-speed fuel consumption. Methods to save fuel: 1. Check the tire system: Insufficient tire pressure will increase the friction between the tires and the ground, increasing fuel consumption, so tire pressure should be checked frequently. Different car models and tires have different pressure standards. 2. Check the brake system: Some cars may have slight brake drag, which is equivalent to increasing the car's load while driving, leading to increased fuel consumption, so regular checks are necessary. 3. Regular maintenance: Air filters, gasoline filters, and oil filters need to be replaced every 5,000 kilometers or more, as a clogged air filter will reduce air intake, causing incomplete gasoline combustion and reducing fuel efficiency. Wear on the clutch plate and clutch pressure plate, as well as spark plugs that have been used for too long, can also increase fuel consumption, so they should be replaced regularly. 4. Reduce load: Every additional 1,000 grams of load increases fuel consumption by 1%, so try to minimize unused items in the trunk.
When I first started driving, I was always worried about high fuel costs. A friend taught me the basic formula for calculating fuel consumption per 100 kilometers: divide the amount of fuel filled by the kilometers driven and then multiply by 100. For example, fill up a full tank and note the initial mileage as 0. After driving 400 kilometers, refuel with 30 liters. The fuel consumption would be 30 divided by 400 equals 0.075, multiplied by 100 gives 7.5 liters per 100 kilometers. In practice, it's important to fill up to the same level (until the fuel pump clicks off) to ensure consistency; avoid estimating mileage as it can lead to large errors. I use a mobile app to automatically track the data, which is quite handy and more accurate than the car's display, helping me spot anomalies. On the highway, maintaining a steady speed of 80 km/h can lower fuel consumption to as little as 6 liters, but in city traffic with frequent stops and acceleration, it can rise to 10 liters. Regularly monitoring fuel consumption helps me save money. Last year, after replacing worn-out spark plugs, my fuel consumption dropped by 1 liter. I recommend new drivers develop the habit of checking tire pressure and engine oil—these small adjustments can save a lot on fuel costs in the long run and extend the engine's lifespan.
