What is the formula for calculating fuel consumption per 100 kilometers?

[Charles]

The formula for calculating fuel consumption per 100 kilometers is the amount of fuel consumed divided by the distance traveled. The operation of a car relies on the combustion of gasoline, which inevitably contains some impurities. Over time, these impurities can accumulate on the engine surface, forming carbon deposits and sludge. This not only damages the engine but can also lead to difficulties in starting, high idle speeds, excessive exhaust emissions, and increased fuel consumption. The greatest resistance a car encounters while driving comes from air. If the car's body is covered with too much dirt and dust, it will increase the vehicle's resistance during movement. Never underestimate the impact of this seemingly minor layer of dust—it can significantly increase the car's fuel consumption due to the added resistance.