What do the e and f on the fuel tank mean?

2 Answers
JosiahRose
07/24/25 7:05pm
The letters e and f on the fuel tank represent abbreviations for the remaining fuel level: e stands for the English word 'empty', meaning the tank is empty; f is the abbreviation for the English word 'full', meaning the tank is full. When the needle points to e, it indicates that the fuel is almost used up, while pointing to f means the tank is full. Precautions for the car fuel gauge: 1. Do not wait until the warning light comes on to refuel: too little fuel is not conducive to the normal operation of the fuel pump and reduces its service life; 2. It is not recommended to fill the tank completely when refueling: gasoline expands when heated and evaporates into gasoline vapor in the high temperatures of summer, requiring space to accommodate; 3. Indication deviation: a deviation not exceeding the width of the needle is normal.
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DeAbel
08/11/25 10:36am
When I first started driving, I studied the 'e' and 'f' on the fuel tank. 'e' stands for 'empty,' meaning the tank is out of fuel, and 'f' stands for 'full,' indicating the tank is full. On the dashboard, when the needle points to 'e,' you must refuel immediately, or the car could stall or break down at any moment. I recommend not waiting until the needle approaches 'e'—instead, head to the gas station when about a quarter of the fuel remains. This habit helps avoid roadside troubles. Once, I forgot to check the gauge and drove until the needle hit 'e,' only to run out of fuel on a deserted suburban road. Luckily, my phone had signal, and I could call for help. The fuel gauge might occasionally be inaccurate—due to a damp or aging sensor, for example—so during regular maintenance, check if the gauge responds properly to prevent false readings. Developing this habit makes driving much more worry-free.
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