PROTECTIVE LUBRICANT FOR METAL COMPONENTS Russian patent published in 2001 - IPC

FIELD: lubricants used as protective coatings of metal components, more particularly storage of agricultural equipment on open sites. SUBSTANCE: lubricant comprises, wt. %: spent motor oil, 20-30; saponified tall follow pitch, 2.0-3.0; hydrochloric acid, 0.25-0.35; and water, the balance. Use of spent oils of autotractor lubricants makes it possible to avoid using lubricants from expansive oil petroleum fractions. EFFECT: elimination of corrosion of metal components of agricultural equipment during storage on open sites. 2 tbl