What is the fuel consumption per 100 kilometers for a car?
2 Answers
Fuel consumption per 100 kilometers is closely related to the vehicle model. Sports cars consume more fuel, while family cars generally consume less. The following factors affect a car's fuel consumption: 1. Reducing vehicle weight: There is a proportional relationship between vehicle weight and fuel consumption. It is said that for every 10% reduction in vehicle weight, fuel consumption will decrease by a corresponding percentage. 2. Improving car aerodynamics: A lower drag coefficient will significantly reduce fuel consumption. These two factors are also proportionally related. 3. Improving engine thermal efficiency: Currently, the thermal efficiency of gasoline engines (the proportion of fuel converted into useful work) is generally over 30%, while diesel engines exceed 40%. This is the main reason why diesel engines are more fuel-efficient than gasoline engines. Experts point out that there are two other important indicators for evaluating an engine's technical level: the power-to-weight ratio and the engine's specific power. The ratio of engine power to displacement is called specific power, indicating how much power an engine can produce per liter of displacement. A higher ratio indicates more advanced engine technology. 4. The essence of fuel efficiency: To be realistic, many 'amateur drivers' take great care of their vehicles. However, due to a lack of automotive knowledge, their care often only extends to keeping the car clean, while other aspects are neglected. In fact, scientific maintenance can help achieve fuel efficiency goals.
Having driven for over a decade, my experience tells me there's no fixed number for a car's fuel consumption per 100 kilometers—it varies greatly between different vehicles. A regular sedan typically consumes between 5 to 8 liters, but in city traffic or with a large SUV, it can jump above 10 liters. On highways, I find it much more fuel-efficient, dropping to around 5 liters. Driving habits make a huge difference—for instance, aggressive acceleration or sudden braking consumes more fuel, while smooth driving saves quite a bit. Factors like air conditioning and road conditions also play a role; using AC in summer can increase fuel consumption by 10-20%, and mountainous roads are more fuel-intensive too. I recommend regularly checking tire pressure, as maintaining proper pressure can save about 5% on fuel, and regular engine maintenance also helps.
