ANTIWEAR COMPOSITION AND METHOD OF LUBRICATING AN INTERNAL COMBUSTION ENGINE

摘要

The present invention relates to a lubricating composition containing an oil of lubricating viscosity and an antiwear package. The antiwear package may contain a derivative of a hydroxycarboxylic acid; and a salt of a sulphur-free phosphorus-containing compound. The salt includes amine salts, ammonium salts, metal salts and mixtures thereof. The invention further provides for a method of supplying an internal combustion engine with the lubricating composition.