MULTIPURPOSE ENGINE OIL

A universal engine oil for lubrication of engines with magneto ignition and/or spontaneous ignition, composed of base oils processed with viscosity modifiers, depressants and optionally anti-foaming compounds, characterised in that it consists 95.0 to 80.0 weight parts of base oils composed of essential oils of cinematic viscosity 5 to 30 mm /s in the temperature of 100 degrees Celsius, prepared from fraction of rock oil selectively refined, evaporated, preferably hydrorefined, processed with viscosity modifiers and/or viscosity modifiers of dispergation properties, by depressants and optionally anti-foaming compounds and 5.0 to 20.0 weight parts of universal lubrication composition, consisting detergent-additives in form of calcium metal compounds in the mixture of polybutene succinimides and/or polybutenesuccinoesters, zinc dithiophosphates and/or phenol derivatives with butyl radicals, consisting tertiary carbon and/or amine derivatives, consisting secondary or tertiary nitrogen and acids and/or anhydrides polybutenesuccinic and/or polypropylenesuccinic and/or polyethylenesuccinic acid of molecular weight 200 to 2000, preferably 250 to 1700, however, calcium metal compounds are low-alkaline and/or peralkaline calcium alkyloarylsulfonates and/or calcium naphthosulfonates of alkali reserve coefficient 0.01 to 25.0 and of content of calcium counter-ions 0.1 to 0.75 moles/kg contained in the amount 2.0 to 50.0 weigh parts, preferably 5.0 to 30.0 weight parts and/or calcium alkylophenates normally sulfurized and/or peralkaline, in which the proportion of content of metal in alkali reserve to content of metal in normal calcium sulfurized phenate is 1.05 to 10.00 and the mole proportion of sulphur to calcium is 0.05 to 1.5, used in the amount of 1.0 to 50.0 weight parts, preferably 5.0 to 40.0 weight parts, and polybutene succinimides and/or polybutenesuccinoesters are used in the amount of 3.0 to 60.0 weight parts, however polybutene succinimides are monopolybutenesuccinimides and/or bispolybutenesuccinimides of content of total nitrogen from 0.6 to 5.0 weight percent and proportion of alkaline nitrogen and to total nitrogen from 0.1 to 0.8 and the used zinc dithiophosphates are derivatives of 0,0-diesters obtained from primary alcohols containing 3-12 carbon atoms in the alkoxy chain, and/or secondary alcohols containing from 3 to 8 carbon atoms, preferably 3-6 carbon atoms in the alkoxy chain, used in the amount of 30-150 moles per kg, preferably 50 to 130