Womi W110 Oil leak stop stops oil leaks from gaskets and seals in engine, power steering and gearbox. Universal conditioner for plastic gaskets in engines and transmissions. Oil leakstop Impregnates the leaking seal, makes it elastic again, allows it to swell in a controlled manner and prevents oil leaks for a long time. Can be used preventively and curatively. Suitable for all types of oil and all systems that contain oil.