Will a new car that hasn't been driven 100 kilometers display the 100-kilometer fuel consumption?
2 Answers
Will a new car that hasn't been driven 100 kilometers display the 100-kilometer fuel consumption. Introduction to Constant Speed Fuel Consumption: Constant speed fuel consumption refers to the fuel economy indicator when a car is driving at a constant speed on good road conditions. Since constant speed driving is a basic operating condition for cars on highways, and this type of fuel consumption is easy to measure, it is widely adopted. For example, France and Germany use the constant speed fuel consumption at 90Km/h and 120Km/h as the main evaluation indicators for fuel economy. Introduction to 100-kilometer Fuel Consumption: The 100-kilometer fuel consumption indicated in the manuals of domestic cars is generally the constant speed fuel consumption. However, since cars often experience various working conditions such as acceleration, deceleration, braking, and engine idling during actual driving, the constant speed fuel consumption is often lower than the actual fuel consumption, resulting in a significant difference. This difference is even more pronounced for cars frequently used for short-distance driving in urban areas.
The fuel consumption display on a brand-new car that's driven less than 100 km isn't very accurate. When I bought my first car, I was also curious and kept staring at it right after starting the engine. After just driving a few dozen kilometers, the numbers on the screen kept jumping around like it was playing games. Later, I asked an expert and learned that the car's computer records data from scratch: when you've driven very little, it calculates a short-term average based on the current driving distance. For example, if you've only driven 50 km, it shows an estimated value. But this estimation isn't reliable because there are too few data points, making it easily affected by instantaneous fuel consumption. The truly accurate fuel consumption per 100 km will only stabilize after you've driven at least 100 km or more. During the break-in period of a new car, fuel consumption is often higher than normal, but after driving a few hundred kilometers, the data becomes more realistic. My advice is not to rush checking it—focus on driving well and getting familiar with your car's condition first.
