How to Check Your Car's Fuel Consumption?

3 Answers
AvaMarie
07/29/25 9:13am
You can check it through the fuel consumption display on the dashboard or calculate it yourself. The calculation method for a car's fuel consumption per 100 kilometers: Fuel consumption per 100 kilometers equals fuel consumption (liters) divided by the distance traveled (kilometers) multiplied by 100. The fuel consumption per 100 kilometers indicated in the manual of domestic cars is generally the constant-speed fuel consumption. Constant-speed fuel consumption refers to the fuel economy index when the car is driving at a constant speed on good roads. Several key technologies related to fuel consumption include three main aspects: The relationship between car weight and fuel consumption is directly proportional. For every 10% reduction in car weight, fuel consumption will also decrease by several percentage points accordingly; car shape, a smaller aerodynamic drag of the car body will significantly reduce fuel consumption, and the relationship between these two is also directly proportional; driving conditions are an important factor affecting fuel consumption.
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AlexLee
08/12/25 8:54am
The most convenient way is to check the fuel consumption display on the dashboard. I always glance at the average fuel consumption data from the trip computer before driving. However, this number can sometimes be inaccurate because it's calculated based on short-term driving. For more accuracy, I use a simple method: record the odometer reading before each refuel, reset the trip meter after filling up the tank, and then calculate the actual fuel consumption by dividing the new fuel amount by the actual kilometers driven after running through that tank of fuel. Remember to create a dedicated memo table on your phone to record these data. Also, note that using air conditioning and high-speed driving have a significant impact on fuel consumption. I've tested that using air conditioning can increase fuel consumption by about 1 liter per 100 kilometers.
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OAmelia
10/06/25 4:22am
I'm used to using the Fuel Additive APP to track my fuel consumption. After each refueling, I just take a photo of the receipt, and the APP automatically reads the fuel amount and price, then calculates the mileage and fuel consumption. This method is especially convenient for frequent drivers and can even generate monthly fuel consumption trend charts. If the car comes with an in-vehicle connectivity system, it's even simpler—I often export fuel consumption reports directly from the system. Occasionally, I pay attention to the instantaneous fuel consumption bar on the dashboard, which spikes when I floor the accelerator, helping me improve my driving habits. Remember, for accurate fuel consumption tests, it's best to use the same fuel grade at a fixed gas station.
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