What does 1 fuel consumption mean?

[VanAdam]

So-called 1 fuel consumption means the vehicle's fuel consumption is 1 liter per 100 kilometers. Vehicles that can achieve such fuel consumption are extremely rare. Generally, small-displacement Japanese cars consume about 4 liters of fuel per 100 kilometers, which is 4 fuel consumption. On the market, only hybrid vehicles that use more electricity and less fuel can achieve 1 liter per 100 kilometers. Although some plug-in hybrid models claim to have a fuel consumption of 1 liter per 100 kilometers, the actual fuel consumption exceeds 1-2 liters. Fuel consumption per 100 kilometers is an indicator of a vehicle. Standardized fuel consumption is a statistical norm. When a vehicle travels within its economical speed range, slower speeds result in higher fuel consumption per 100 kilometers, while exceeding the economical speed has the opposite effect. If the engine speed is maintained within the same safe range, the hourly fuel consumption remains the same regardless of the vehicle's speed. For calculating fuel consumption on highways and in engineering transport, the first two norms are not suitable; hourly fuel consumption calculation is more accurate. The formula for hourly fuel consumption: fuel consumption per 100 kilometers divided by 100 multiplied by the limit speed multiplied by 0.8 (the limit speed is the maximum safe speed). Road condition fuel consumption (Fuel-Economy-of-Chassis-Dynamometer-Test-Cycles) is a fuel indicator calculated based on values obtained from repeated tests where the vehicle is driven at specified speeds and times on designated roads, also known as multi-condition road cycle fuel consumption. The standard specifies that each cycle includes various driving conditions and records driving conditions based on specified gear shift times, stopping times, driving speeds, acceleration, braking, and deceleration. The values obtained from this method are closer to actual values. The Society of Automotive Engineers (SAE) established the SAEJ10926 road cycle test standard, which is widely adopted. This standard includes four different cycles: urban, suburban, intercity (55 Mile/h), and interstate (70 Mile/h), and then calculates fuel consumption based on these values. The calculation formula: X = a multiplied by economical speed divided by b, where a is the fuel consumption per 100 kilometers and b is the measured value.