FIELD: chemistry.
SUBSTANCE: lubricating composition contains base oil associated with group III and/or group II of base oil API categories, 0.5-5 wt % phenol antioxidant and 0.5-5 wt % amine-based antioxidant and total content of antioxidants is at least 2 wt %.
EFFECT: improved method.
5 cl, 4 tbl, 6 ex
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