Castrol Tribol™OG 500-0 (previously called Castrol Tribol™ 5000) with TGOA is a high-performance open gear grease. It was especially developed for application in cement, mining and other heavy industries, to assure proper tribo-technical and economical maintenance of open gears through automatic spray systems. Castrol Tribol™ OG 500-0 differs from conventional asphaltic type open gear lubricants, as it does not contain solvents nor solids. It has outstanding extreme pressure (EP) antiwear characteristics derived from the latest development in the field of surface improving additives designated TGOA. The TGOA additive package performs better than other EP and antiwear additives because of its unique action on frictional surfaces.