What do F and E on the fuel gauge represent?
2 Answers
The F on the fuel gauge stands for the first letter of the English word 'full', indicating a full tank of fuel. The E on the fuel gauge stands for the first letter of the English word 'empty', indicating low fuel. When the fuel gauge points to E, there is still a small amount of fuel left in the tank to support driving to a nearby gas station. The fuel level displayed on the fuel gauge is connected to a float ball inside the fuel tank via a metal rod. This principle is similar to the water tank in a toilet. The end of the metal rod connected to the float ball will be linked to a variable resistor through a movable contact. Changes in the position of the float ball due to the fuel level in the tank will also alter its position on the variable resistor via the metal rod. The variable resistor is then connected to the car's fuel gauge. The movement of the fuel gauge needle is controlled by the current from the variable resistor. Precautions for using the fuel tank: Before a long-distance trip, the more fresh fuel you have, the better the acceleration feel will be during high-speed driving. If the car is rarely driven, it is recommended to maintain a low fuel level and not exceed the upper limit of the fuel tank. Do not use your mobile phone at a gas station; leave it in the car or turn it off. Do not return to the vehicle while refueling.
I remember the F and E on the fuel gauge while driving were always simple yet crucial: F stands for Full, meaning the tank is full and there's plenty of fuel; E stands for Empty, meaning it's time to refuel immediately. A common mistake I made when I first started driving was forgetting to check the fuel gauge, and once on the highway, the needle nearly dropped to E, causing the car to shake a few times and almost stall, giving me a cold sweat. Since then, I've developed a habit of glancing at the dashboard every morning before starting the car to ensure the needle isn't near E. The fuel gauge works via a sensor—a float that rises and falls to reflect fuel levels—but it can sometimes give false readings, such as when the car is parked on a slope, making the fuel level display inaccurate. So don’t rely solely on it; make it a habit to refuel when the tank drops to a quarter full to protect the fuel pump from overheating and damage. Paying a little more attention to this small detail can save you a lot of driving headaches.
