How many kilograms is 20 liters of 95-octane gasoline?
2 Answers
20 liters of 95-octane gasoline weighs 15 kilograms. Introduction to 95-octane gasoline: 95-octane gasoline is composed of 95% isooctane and 3% n-heptane. High-compression engines should use high-octane gasoline. Using low-octane gasoline in a high-compression engine can cause abnormal combustion, leading to knocking, increased fuel consumption, and reduced driving power. Refueling precautions: Do not use mobile phones while refueling, as they may generate sparks, which can easily ignite the dense gas at the gas station and cause a fire. High-compression engines can also use low-octane gasoline, but do not blindly choose the gasoline grade based on compression ratio. Instead, follow the manufacturer's requirements for refueling.
I particularly enjoy calculating such problems, as I have some knowledge about cars. The density of 95-octane gasoline is approximately 0.75 kilograms per liter, which is an average value. The actual density may fluctuate between 0.73 and 0.77, depending on temperature and fuel quality. Multiplying the volume of 20 liters by the density of 0.75 kilograms per liter equals 15 kilograms. Now, converting to the unit of jin: one kilogram equals two jin, so 15 kilograms multiplied by 2 is 30 jin. At high temperatures, the density may drop to 0.73, reducing the weight to about 29 jin, while at low temperatures, it may rise to 0.77, increasing the weight to approximately 31 jin. However, for daily estimation, 30 jin is quite reliable. Remember, the slight differences in density when refueling only affect a few jin and do not impact driving safety.
