How does your car know how much gas you have?
In: Engineering
Inside the tank is a float attached to a rod. The fuel indicator is controlled by the angle of the connecting rod. So when the tank is full, the float hits the top of the tank. Likewise when running near or at empty, the float rests on the bottom of the tank. This is why when you refuel, the gauge sits at “full” for a bit and why when “empty” you can still drive for a bit.
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