Lubricant compositions containing an overbased amorphous alkaline earth metal salt as a metal protectant

摘要

Lubricant compositions are made containing, as a metal protectant additive, an overbased amorphous alkaline earth metal salt of fatty acid. The additive is added in either a liquid or powdered form to the base oil in the composition. The overbased additive in the lubricating composition serves as a metal protectant to provide detergency, friction-modifying and acid-neutralizing properties to the compositions.