Synergistic lubricating oil composition containing a mixture of a benzo[b]perhydroheterocyclic arylamine and a diarylamine
First Claim
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1. A composition comprising a lubricating oil and a synergistic mixture of antioxidants, said mixture comprisinga) 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 particularly effective mixture of a benzo[b]perhydroheterocyclic arylamine and a diarylamine which together provide superior oxidation inhibition.
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27 Claims
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1. A composition comprising a lubricating oil and a synergistic mixture of antioxidants, said mixture comprising
a) from 0.1 to 10 weight percent of a first antioxidant according to formula I:
Specification