What is the fuel consumption per 100 kilometers for a car?
2 Answers
Car fuel consumption per 100 kilometers is around 5L, 7L, 10L, or 12L, but fuel consumption is a complex factor that depends on the vehicle's performance, road conditions, and the driver's skills. The fuel consumption per 100 kilometers indicated in the manuals of domestic cars refers to the constant-speed fuel consumption, which measures the fuel economy of a car traveling at a constant speed on good road surfaces. 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 90 km/h and 120 km/h as the main evaluation indicators for fuel economy.
I've been driving that family sedan for several years now, mainly commuting in the city with an average fuel consumption of about 8 liters per 100 kilometers. During heavy traffic, it can spike to over 10 liters, while on highway trips during weekends, it drops to just over 6 liters. The car is a bit older, so the engine isn't as efficient as newer models, and turning on the AC in summer increases fuel consumption noticeably. I've developed a habit of gently pressing the accelerator and brakes, which I've found helps save some fuel costs—saving up a bit for car maintenance. I always remind myself to check tire pressure regularly because underinflated tires also increase fuel consumption. Overall, fuel consumption isn't fixed; it depends on road conditions, the car's condition, and personal driving habits.
