What does EF mean on a car fuel tank?

1 Answers
AutumnAnn
07/29/25 10:58pm
EF on a car fuel tank represents the remaining fuel level, where E stands for Empty, indicating that the fuel in the tank is insufficient or about to run out; F stands for Full, meaning the tank is at full capacity. When fuel is low, the refueling indicator light will turn yellow; in cases of extremely low fuel, the indicator will turn red. Effects of low fuel level: 1. When the fuel in the tank is too low, the car may experience fuel supply issues, leading to engine shaking, jerking, or stalling; 2. The fuel pump may overheat; 3. With low fuel, impurities at the bottom of the tank can enter the fuel supply system due to fuel agitation, causing fuel line blockages; 4. It affects driving safety.
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