ENGINE OIL Russian patent published in 2012 - IPC C10M169/04 C10M129/10 C10M129/54 C10M133/16 C10M135/30 C10M137/10 C10M143/00 C10M145/14 C10M159/20 C10M105/32 C10M107/02 C10N30/06 C10N30/10 C10N40/25 

FIELD: chemistry.

SUBSTANCE: oil contains the following in wt %: calcium alkylsalicylate 5.4-6.0, alkaline calcium alkylphenolate 1.0-1.5 or highly alkaline calcium alkylphenolate 0.7-0.8, a colloidal dispersion of calcium carbonate stabilised with calcium sulphonate 1.0-1.5, boron-containing succinimide 2.5-3.5, sulphur-containing alkylphenol 0.4-0.6, zinc dialkyldithiophosphate 0.9-1.5, polymethacrylate 0.9-1.2, polymethylsiloxane 0.003-0.005, zinc dialkylphenyl dithiophosphate 1.4-2.0, an oil viscosity modifier selected from copolymers of ethylene and propylene or hydrogenated copolymers of styrene and butadiene or hydrogenated copolymers of isoprene 0.6-2.0, an ester selected from diisooctylsebacate or diisooctyldipate or triphetanoate trimethylolpropane 14-18, polyalphaolefin oil 54.0-59.5, mineral oil - up to 100.

EFFECT: improved antifriction and antioxidation properties of the oil for everyday use in high-load vehicle diesel engines.

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