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How many kilometers can a car generally run when the fuel tank is empty?

1 Answers

River

07/30/25 7:39am

When the fuel tank is empty, the car cannot run. When the fuel gauge light comes on, the car can generally run about 30 to 50 kilometers. Below are some precautions for using the car fuel gauge: 1. Pointer indication deviation: When the fuel pump is working, a negative pressure is created inside the fuel tank, which reduces the tank's volume and raises the fuel level. Additionally, the thermal expansion effect of gasoline due to temperature can cause the display to be higher than actual. When the temperature drops or the fuel tank is opened, the pressure is released, and the fuel level drops accordingly, so display deviation is a normal phenomenon. However, the deviation generally does not exceed the width of one pointer. 2. Do not continue driving after the indicator light comes on: When the indicator light comes on, it means the fuel level is too low. Continuing to drive at this point can be harmful because the fuel pump, located inside the fuel tank, generates a lot of heat during operation. Fuel acts as its coolant, continuously cooling it to ensure normal operation. Without the cooling effect of fuel, prolonged operation of the fuel pump will inevitably cause it to burn out. 3. Refuel promptly after the indicator light comes on: It is essential to refuel promptly after the indicator light comes on because the fuel pump relies on gasoline for heat dissipation and lubrication. Insufficient fuel can hinder the normal operation of the fuel pump and reduce its service life.

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