| 摘要 |
This invention encompasses a lubricating oil composition contaminated with at least about 0.3 wt% of a biodiesel fuel or a decomposition product thereof, based on the total weight of the lubricating oil composition, comprising: a. a major amount of base oil of lubricating viscosity; and b. a diarylamine compound, wherein, the amount of the diarylamine compound is at least about 0.1 wt.%, based on the total weight of the lubricating oil composition. Methods of using the lubricating oil compositions are also described.
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