FIELD: motor industry. SUBSTANCE: the lubricating oil comprises (wt %): 0.5-1.0 dispersing additive; 0.01-2 metal salt of dialkyldithiophosphoric acid; up to 1000 mineral oil or oil containing additives. The dispersing additive is a product of reaction of 0.7-0.95 equivalent of alkylenepolyamine per equivalent of polyisobutylene succinic acid containing 1.3-4 groups of succinic acid per equivalent weight of polyisobutylene having a mean numerical molecular weight of 1300-5000. The mean molecular weight to mean numerical molecular weight is 165-4.5. The dialkyldithiophosphoric acid salt is a salt of an acid in which one alkyl is isopropyl and the other alkyl contains 5-13 carbon atoms and 10-90 mole % of isopropyl groups and the metal is calcium, magnesium, zinc, aluminium, tin, cobalt, nickel, iron, lead, molybdenum or copper. Oil further comprises 0.1-10% of a product of reaction of polyalkenylsuccinic acid in which polyalkylene has a mean numerical molecular weight of 700-2020 with an amine. Oil further comprises 0.01-5% of an alkaline earth metal neutral or basic salt of alkylbenzenesulfonic acid. EFFECT: improved properties of the lubricating oil. 3 cl, 1 dwg
