Abstract: There is disclosed a lubricating oil composition which contains from about 100 to 450 parts per million of molybdenum from a molybdenum compound which is substantially free of active sulfur and about 750 to 5,000 parts per million of a secondary diarylamine. This combination of ingredients provides improved oxidation control and friction modifier performance to the lubricating oil. The composition is particularly suited for use as a crankcase lubricant.
Type:
Grant
Filed:
June 26, 2000
Date of Patent:
January 3, 2006
Assignee:
Afton Chemical Intangibles LLC
Inventors:
Vincent James Gatto, Mark Thomas Devlin