Mineral oil intended for the lubrication of chains of all types of chainsaws which have wide application in forestry and wood processing industry. Protects against wear and corrosion, what provide extended service life of chains and reduce oil consumption. High viscosity index enables equally use in summer and winter conditions, while retaining all of its properties. It can be used in wood processing in difficult operating conditions, under different temperature conditions, in conditions of different humidity, in the presence of water, snow, dust and mud.