C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
C10M 135/36 (2006.01) C10M 125/04 (2006.01) C10M 133/12 (2006.01) C10M 163/00 (2006.01)
Patent
CA 2425758
The invention relates to a lubricating oil composition having improved antioxidant properties, and which contains a molybdenum compound and an alkylated phenothiazine. Further, it may also include a secondary diarylamine, preferably an alkylated diphenylamine. This combination of additives provides improved oxidation control and friction modifier performance to the lubricating oil. The composition is particularly suited for use as a crankcase lubricant, or a transmission lubricant, including low levels and zero levels of phosphorus.
Esche Carl K. Jr.
Gatto Vincent J.
Corporation Ethyl
Macrae & Co.
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