
Fuel consumption per 100 kilometers = Fuel consumption (liters) ÷ Distance traveled (kilometers) × 100. When the fuel gauge light comes on, fill up the fuel tank, reset the trip odometer to zero, and record the trip odometer reading when the fuel gauge light comes on again after driving.

I've been driving for over a decade, and calculating fuel consumption is second nature to me. First, fill up the fuel tank completely and note the mileage at that time. After running through a full tank, fill it up again and check how many liters of fuel were added. Then, subtract the old mileage from the current mileage to get the distance traveled. The formula is simple: Fuel consumption (liters per 100 kilometers) = (Liters of fuel added ÷ Distance traveled in kilometers) × 100. For example, if you added 50 liters and traveled 500 kilometers, the calculation would be (50 ÷ 500) × 100 = 10 liters per 100 kilometers. It's recommended to use the same fuel pump each time you refuel and take the average of multiple records to minimize errors. Additionally, regularly checking tire pressure and the air filter can help maintain stable fuel consumption, saving you money and giving you peace of mind.

As a student, when I first bought my car, I used a method I learned from Douyin with my friends to calculate fuel consumption. Before each refueling, I would record the mileage in my memo, drive until the tank was nearly empty, then refuel and note the amount of fuel added. The formula is straightforward: (Fuel amount ÷ Distance traveled) × 100. For example, if I drove 200 kilometers and added 16 liters of fuel, the calculation would be 8 liters per 100 kilometers. I also installed the Xiaoxiong Fuel Consumption App on my , which automatically imports data, making it even more convenient. Generally, highway driving results in lower fuel consumption, while city traffic jams increase it, so I take multiple mixed-condition trips to get an average. I also learned to reduce sudden braking, which lowered my fuel consumption by about 0.5 liters—a pretty practical tip.

As a car enthusiast, I enjoy tinkering with OBD devices, but manually calculating fuel consumption isn't difficult either. Fill up the tank and reset the trip recorder, then drive until empty and refill, noting the liters added and kilometers driven. The fuel consumption formula is: (Fuel added ÷ Kilometers driven) × 100. For example, adding 40 liters after driving 500 km gives 8L/100km. I recommend using Excel for multiple tracking sessions - if you spot abnormalities, check spark plugs or oxygen sensors. By the way, maintaining a steady speed of 60-80 km/h is most fuel-efficient, and proper can extend engine life - killing two birds with one stone.

As a housewife, I'm used to being meticulous with calculations. Teaching kids to calculate fuel consumption: fill up the tank and note the starting mileage, then after driving, fill up again and record the new mileage and fuel amount. Distance traveled = new mileage minus old value. Fuel consumption formula = (liters of fuel ÷ kilometers driven) × 100. For example, adding 30 liters after driving 300 kilometers means 10 liters per 100 kilometers. Try this for a few weeks to get an average, avoiding inaccuracies from a single measurement. In daily driving, use air conditioning less and avoid sudden acceleration to save 1-2 liters per 100 kilometers. This way, the money saved on fuel in a year can be added to household expenses—both economical and reassuring.

As an environmental volunteer, calculating fuel consumption can promote low-carbon travel. Record the mileage before and after refueling, and the amount of fuel added. The calculation (liters of fuel added ÷ kilometers driven) × 100 gives the fuel consumption per 100 kilometers. The lower the value, the fewer the carbon emissions. It is recommended to record monthly and adjust driving habits when changes are noticed: avoid sudden acceleration and plan routes to reduce traffic congestion. Switching to energy-saving tires can reduce fuel consumption by about 0.8 liters per 100 kilometers. Share it on social media to encourage more people to pay attention, as environmental protection starts with small steps.


