Can oil be extracted from a car's fuel tank?

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Oil cannot be directly extracted from a car's fuel tank. To prevent gasoline from leaking out of the fuel filler neck when the vehicle rolls over or tilts, a one-way valve is designed at the connection between the fuel line and the tank. Its function is to ensure that gasoline can flow from the fuel line into the tank but prevents gasoline in the tank from flowing back into the fuel line. The gasoline flowing out after the fuel nozzle is inserted into the fuel filler neck needs to be delivered to the tank through the fuel filler pipe. Due to the distance between the car's fuel tank and the fuel filler neck, and the complex structure of the car's chassis, it is difficult for the fuel line to run straight into the tank, inevitably with some bends. If the oil extraction tube is too rigid to turn or too soft and prone to curling, the tube inserted into the tank cannot reach the liquid level in the tank, making it still impossible to extract oil.