This pneumatic oil extraction device, which operates under vacuum, allows for the easy and thorough removal of transmission or engine oil from vehicles without an oil drain. The vacuum principle reliably directs the oil to be extracted into the large tank of the device, and the closed-loop principle minimizes the risk to the environment from leaking fluids. The built-in safety valve prevents overpressure in the closed system during extraction. The air pressure for extraction can be conveniently adjusted via a regulator, and the collection container features a level indicator to ensure timely emptying of the tank.