What Happens If You Add Water to the Fuel Tank?
2 Answers
Adding water to the fuel tank can cause engine damage. Below is an introduction on why water should not be added to the fuel tank and the importance of refueling at reputable gas stations: Why water should not be added to the fuel tank: If water is added to the fuel tank, it will flow through the fuel system into the engine, causing rust in the cylinders and pistons. It may also score the engine walls, reducing compression, and in severe cases, even lead to an explosion in the crankcase. The importance of refueling at reputable gas stations: In daily vehicle use, when the fuel level is low, always refuel at reputable gas stations. Some areas may have unregulated gas stations where fuel quality is not guaranteed. If you refuel at such stations, unscrupulous vendors might mix water into the fuel to cut costs. This low-quality fuel, when used in your vehicle, can allow water to enter the engine through the fuel system, damaging the cylinders and pistons and causing irreversible harm to the vehicle.
To be honest, I was also curious about adding water to the fuel tank when I was young. Back then, I heard elders say water could cool the engine, but the result was disastrous when a friend accidentally added it. Once water enters the gasoline tank, its higher density causes it to sink to the bottom. When the engine starts, it draws in water instead of gasoline, leading to immediate stalling due to unburnable fuel. The fuel injectors corroded into rust, and replacing the entire system cost 20,000 yuan. The mechanic later explained that water-fuel separation blocked the fuel lines, requiring the tank to be emptied like a vacuum cleaner. That lesson taught me: adding water is a big no-no. Regularly check the fuel cap to prevent rainwater from seeping in, and use legitimate fuel additives for cleaning—that’s the right way. Next time you encounter a similar issue, don’t hesitate to call a tow truck—it saves both money and hassle.
