Should You Wait Until the Yellow Warning Light Comes On to Refuel Your Car?
2 Answers
Do not wait until the warning light comes on to refuel, as it can affect the lifespan of the fuel pump. Here are the relevant details: 1. Reason: The fuel pump is submerged in fuel, which helps cool it. When the yellow warning light comes on, the fuel pump is no longer submerged, and the fuel cannot effectively cool the pump. 2. Consequences: Frequently waiting until the fuel warning light comes on before refueling may cause damage to the fuel pump and filter. The fuel level sensor inside the fuel pump includes a float potentiometer, which has a sliding resistor. When the fuel tank is full, the float's liquid level is at its highest point, and the potentiometer's resistance is at its lowest. Conversely, when the fuel tank is empty, the opposite occurs.
I've been driving for over 10 years and have gained some insights. I really don't recommend waiting until the fuel light comes on to refuel. When that light turns on, it means the fuel level in the tank is very low. The fuel pump relies on being submerged in fuel for cooling, and if the fuel level is too low, it becomes exposed to air and can overheat and get damaged. Once, I was lazy and waited until the light came on before going to the gas station, and as a result, the pump burned out. It cost me hundreds to repair, much more expensive than refueling regularly. Additionally, sediment at the bottom of the tank can get sucked in and clog the filter, leading to engine issues. Now, I make it a habit to refuel when the tank reaches a quarter full, ensuring smoother operation and longer vehicle life. Safety comes first when driving—don't risk it just to save a bit of time. Remember, maintaining an appropriate fuel level keeps your vehicle more reliable, especially during long trips or mountain driving.
