Lubricating oil compositions containing a tetraalkyl-napthalene-1,8 diamine antioxidant
First Claim
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1. A lubricating oil composition comprising at least one oil of lubricating viscosity and an oil soluble antioxidant herein the antioxidant is a mixture comprising:
- a) from 0.1 to 10 weight percent of a first antioxidant according to formula I;
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Abstract
Disclosed is a lubricating oil composition containing an oil of lubricating viscosity and a N,N,N′,N′-tetraalkyl-naphthalene-1,8-diamine and at least one additive selected from antioxidants, dispersants, and detergents which together provide superior oxidation inhibition and are suitable lubricants for automotive and truck crankcase lubricants; as well as transmission lubricants, gear lubricants, hydraulic fluids, compressor oils, diesel and marine lubricants.
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15 Claims
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1. A lubricating oil composition comprising at least one oil of lubricating viscosity and an oil soluble antioxidant herein the antioxidant is a mixture comprising:
a) from 0.1 to 10 weight percent of a first antioxidant according to formula I; - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A lubricating oil composition comprising at least one oil of lubricating viscosity and an oil soluble antioxidant wherein the antioxidant is a mixture comprising:
a) from 0.1 to 2 weight percent of a first antioxidant according to formula I;
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