Lubricating compositions having improved friction properties

摘要

The present invention provides an additive composition comprising (a) at least one ash-containing phosphorus compound prepared by a primary or secondary alcohol or mixtures thereof, and (b) a salt of at least one hydrocarbylamine and at least one hydrocarbyl acid phosphate. Further, the present invention provides a lubricating composition comprising (a) at least one ash-containing phosphorus compound prepared by a primary or secondary alcohol or mixtures thereof, and (b) a salt of at least one hydrocarbylamine and at least one hydrocarbyl acid phosphate, and methods of use thereof.