LUBRICATING COMPOSITION CONTAINING SUPHUR, PHOSPHOROUS AND ASHFREE ANTIWEAR AGENT BASED ON A CITRIC ACID DERIVATIVE AND AMINE CONTAINING FRICTION MODIFIER

摘要

The invention provides a lubricating composition containing an oil of lubricating viscosity, an amine-containing friction modifier, and an ashless antiwear agent. The lubricating composition is suitable for lubricating an internal combustion engine.