A lubricating oil for greasing chains used in professional chainsaws. - A smooth-flowing lubricant possessing outstanding adhesion thanks to a special additive. This adhesion counteracts particle projection through a centrifuge or dripping effect, and ensures that the components work silently, while providing a lubricant saving. Also protects against wear of the chain and its guide. Features good pumpability, high stability to temperature differences and good water and humidity resistance.