PETROMARK® 10205 PENETRATING OIL + MoS2 is a high-grade multifunctional oil to which Molybdenum Sulphide (MoS2) has been added to guarantee lubrication under extreme conditions. Cleans dirt and grime, loosens rust and scale and penetrates seized parts. Penetrates into inaccessible places and contains excellent moisture resistant qualities resulting in a quick loosening of rusted nuts, bolts, hinges, spark-plugs, aerials, locks, exhausts etc. Protects metal parts against wear and corrosion.