Half Full Or Half Empty? - The Truth About Fuel Gauges


What are fuel gauges for?

Fuel gauges are essential components in car engineering as they indicate how much petrol/gas is available in the petrol tank. Usually mounted on the dashboard, a fuel gauge can be a useful tool for the driver, provided it is functioning properly and there is no electrical short circuit or other damage that might give a false reading. The fuel gauge has two components; the sensing component and the fuel indicator. The potentiometer is activated by the sensing unit which is connected to a small float. When the tank is filled or emptied the float goes up or down, accordingly. This is then reflected in the reading on the indicator in the car by way of a needle that will point to E for empty or F for full. The reliability of the fuel gauge is very important to the driver, especially if on long-haul journeys.

Important safety Features

Fuel gauges are important equipment features we rely on heavily while driving our cars, vans and trucks. Over the years, the auto-mobile industry has worked hard to improve its reliability and accuracy because it plays a crucial role in road safety. For instance, those who drive for a living, particularly long journeys that last an entire night, the fuel gauge is sacrosanct. They may not have accessibility to garages to refuel and a faulty gauge may make them think the tank is full, or vice versa. Either situation can lead to fatal mistakes on busy motorways, which can cause death and destruction in the blink of an eye. What's even more alarming is the fact that thousands of motorists don't even heed the warning light when it does go off, because they believe their vehicle can carry on without topping up, even when the indicator says it can't.

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