All vehicles are equipped with fuel gauges to monitor how much fuel is left in the tank. Some can calculate the approximate distance for the fuel in the tankUnlike older cars that used a mechanical fuel pump, modern cars are equipped with an electric fuel pump sitting at the lowest part of the fuel tank to supply fuel to the engineAll the safety measures i.e proper insulation and lack of oxygen ensure minimum fire hazards can occur as a result of the electric motor inside the fuel tankFUEL PUMP OPERATIONThe fuel pump MUST be fully submerged in fuel for it to work efficiently. As all this is happening the fuel pump is not able to be fully submerged in the reserve fuel. RUSTY FUEL TANKInside the fuel tank, a special anti-corrosive protective compound is usually applied to prevent rusting. When fuel levels remain extremely low, oxidation takes place and rust forms and is eventually syphoned by the fuel pump which causes blockage and rust in the fuel system.

Source: The Star June 10, 2021 07:30 UTC