FIELD: machine building.
SUBSTANCE: invention refers to lubricating composition containing at least 90 wt % of the main lubricating component and 0.5-3 wt % of composition of antioxidant additive, which contains the following: (a) sulphurised fat acid or ash-free dithiocarbamate; (b) blocked amine; and (c) diarylamine; where blocked amine represents one or more 2,2,6,6-tetramethyl piperidines (versions) chosen from the group of compounds.
EFFECT: obtaining lubricating composition capable of providing improved antioxidant protection.
6 cl, 3 ex, 3 tbl
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