What do the letters E and F on the fuel tank represent?
2 Answers
The letters E and F on the fuel tank represent the remaining fuel level in the tank. Here, E stands for Empty, indicating that the fuel in the tank is insufficient or nearly depleted; F stands for Full, indicating that the tank is in a full state. On the fuel gauge of a car's dashboard, the letters E and F are typically used to indicate the remaining fuel level in the vehicle's tank. When the needle on the fuel gauge points to F, it means the car is fully fueled; when the needle points to E, it indicates that the fuel is nearly depleted, and refueling is required. Precautions for refueling a car: Drivers should follow the instructions in the car's manual or the labels on the fuel tank cap to correctly add gasoline. Due to compression ratio considerations, cars requiring high-octane gasoline need fuel with better anti-knock properties. Using low-octane gasoline can cause knocking in the engine cylinders. Even if a car designed for low-octane gasoline is filled with high-octane gasoline, it won't cause knocking, but it may lead to excessive carbon buildup due to insufficient temperature and pressure in the cylinders.
After driving for so many years, I see the E and F on the fuel gauge every day. E stands for Empty, meaning the tank is out of fuel; F stands for Full, indicating a full tank. These are the most common symbols on a car's dashboard, and don't underestimate them. When the needle points to E, the car could stall at any moment. I once forgot to refuel on the highway and ended up pushing the car for several kilometers. Now I've learned my lesson—I refuel when the needle is around halfway, keeping at least a quarter tank for safety. Plus, I always choose reputable gas stations to avoid trouble over small savings.
