What is the actual fuel consumption when the display shows 7?
2 Answers
The displayed fuel consumption of 7 usually corresponds to an actual range of 6~8L. Generally, a well-calibrated dashboard will show a fuel consumption error of around 5%, which is approximately 0.3-0.6 liters. However, some dashboards with larger errors may show a discrepancy of 1-2 liters compared to the actual fuel consumption. Here are some methods to reduce fuel consumption: 1. Regular maintenance: It is essential for the vehicle. If maintenance is not done properly or parts are not replaced in time, fuel consumption will increase. 2. Avoid frequent hard braking: Frequent hard braking is a major cause of high fuel consumption in cars. Braking should ensure the safe driving of the vehicle while making full use of the vehicle's inertia. 3. Avoid excessive use of air conditioning in small-displacement vehicles: For vehicles exposed to the sun, it is not advisable to turn on the air conditioning immediately after getting in.
I've noticed many people are curious about how the displayed fuel consumption of 7L per 100km compares to reality. As a frequent long-distance driver, I find the actual consumption is usually 10% to 20% higher, around 7.7 to 8.4L. This is because the displayed figure is calculated by the car's computer based on average driving data, neglecting variables in real-world driving like sudden acceleration, using air conditioning, or traffic congestion, which all increase fuel usage. From my experience, manual calculation is the most accurate: fill up the tank and note the mileage, drive 200-300km, then fill up again and calculate the real value by dividing the fuel added by the distance traveled and multiplying by 100. Maintenance is also crucial—low tire pressure or a dirty engine can widen the gap, so regular checks help minimize discrepancies. Smooth driving and avoiding sudden braking not only save money but also bring actual consumption closer to the displayed figure. I recommend manually measuring once a month to gather data and adjust habits accordingly.
