What does 'how many oils' mean for a car?

[GabrielaAnn]

The term 'how many oils' for a car refers to the fuel consumption in liters per 100 kilometers. For example, if a car is said to consume '7 oils,' it means the car uses 7 liters of fuel per 100 kilometers. This can be simply calculated by the amount of fuel added and the odometer reading, or directly displayed by the car's onboard computer. Below is an introduction related to fuel consumption per 100 kilometers: 1. Fuel consumption per 100 kilometers is an indicator for vehicles. Standardized fuel consumption statistics are a formatted specification. The slower the vehicle travels within the economical speed range, the higher the fuel consumption per 100 kilometers. Conversely, exceeding the economical speed has the opposite effect. Since most vehicles approach their economical speed at around 90 km/h, the theoretical fuel consumption figures published are usually based on 90 km/h. 2. If the engine speed is maintained within the same safe range, regardless of the vehicle's speed, the hourly fuel consumption remains the same. For calculating fuel consumption on highways or in engineering transport, the first two specifications are not suitable, and hourly fuel consumption is more accurate.