Quote: At the high local temperatures associated with metal-to-metal contact, an EP additive combines chemically with the metal to form a surface film that is ductile enough to prevent the welding of opposing asperities and prevent scuffing or scoring that is destructive to sliding surfaces under high loads (Figure 1). Chemically reactive compounds of sulfur, phosphorus and sometimes chlorine, are used to form these inorganic films.
Quote: At the high local temperatures associated with metal-to-metal contact, an EP additive combines chemically with the metal to form a surface film that is ductile enough to prevent the welding of opposing asperities and prevent scuffing or scoring that is destructive to sliding surfaces under high loads (Figure 1). Chemically reactive compounds of sulfur, phosphorus and sometimes chlorine, are used to form these inorganic films.
How dare you read the same trade rags as I read!!!!
Go wash your keyboard out with molybdenum disulfide if you think sulfur (compounds) is a lubricant.
But then, another way to find out if sulfur compounds lubricate is for some of the non believers to check out their neighborhood... heard down there it is loaded with sulfur.