Lubricating compositions

摘要

Additives comprising an adduct of a calcium salt of a thiocarbonic acid and calcium hydroxide are useful in lubricants to enhance both the extreme pressure/anti-wear and anti-oxidation capabilities thereof. The lubricants are preferably oils of lubricating viscosity, which may be thickened to a grease-like consistency with one or more oil thickeners and contain from about 0.1 to about 20 weight percent of said adduct.