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What are the effects of adding a bottle of mineral water to a car fuel tank?

1 Answers

MacNova

07/30/25 8:51am

Adding a bottle of mineral water to the fuel tank may damage the engine. Fuel tanks can be divided into two types: open tanks and closed tanks. Open tanks have their liquid surface in contact with the atmosphere, and an air filter is installed on the tank cap. Open tanks are simple in structure and easy to install and maintain, making them commonly used in hydraulic systems. Closed tanks are generally used for pressurized fuel tanks, filled with a certain pressure of inert gas, with a charging pressure of up to 0.05MPa. Precautions for using the fuel tank are as follows: 1. Do not wait for the yellow light to come on before refueling: Drivers should check the fuel gauge before driving and calculate whether refueling is needed during the trip based on the distance and the fuel gauge reading. It is advisable to refuel in advance and not wait until the fuel light comes on. The fuel pump is located inside the fuel tank, and it generates high temperatures during continuous operation. Being immersed in fuel helps to cool it effectively. When the fuel light comes on, it indicates that the fuel level is below the fuel pump. Refueling only when the light comes on will shorten the lifespan of the fuel pump, and having too little fuel in the tank may even burn out the pump; 2. Choose to refuel in the morning or evening: Generally, temperatures are lower in the morning and evening, and the vaporization point of gasoline is relatively low, so it is better to refuel during these times. Gasoline has the property of thermal expansion and contraction, and it is charged by volume. At lower temperatures, gasoline has a relatively higher density, and the mass per unit volume also increases, resulting in more fuel being added; 3. Avoid filling the tank completely when driving in the city: When driving in urban areas, there is no need to fill the fuel tank completely. A full tank increases the engine load and fuel consumption. Since refueling is convenient in the city, there is no need to fill the tank to the brim.

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