02339oam 2200433zu 450 991016472310332120210807002146.00-8031-6729-6(CKB)3170000000044871(SSID)ssj0001490138(PQKBManifestationID)11819347(PQKBTitleCode)TC0001490138(PQKBWorkID)11459750(PQKB)11161924(NjHacI)993170000000044871(EXLCZ)99317000000004487120160829d1972 uy engur|||||||||||txtccrLaboratory Performance Tests for Automotive Gear Lubricants Intended for API GL-4, GL-5, and GL-6 Services[Place of publication not identified]American Society for Testing & Materials19721 online resource (71 pages)ASTM special technical publication ;512Bibliographic Level Mode of Issuance: Monograph0-8031-6658-3 Includes bibliographical references and index.The American Petroleum Institute has developed six lubricant Service Designations for Automotive Manual Transmissions and Axles. Each of these Designations states in qualitative terms the kind of service in which a gear lubricant is expected to perform satisfactorily. Both the type of gears and the operating conditions for the lubricant are included in each Service Designation. Supplementing of the qualitative API Designations with performance definitions is needed, particularly for Service Designations GL-4, GL-5, and GL-6. These performance definitions include a series of tests and associated minimum performance requirements. The tests and requirements for GL-4, GL-5, and GL-6 are presented in this publication. Appendix XIV presents the precision data related to these tests. Neither the lubricant classifications, nor the test techniques listed are ASTM Standards.ASTM special technical publication ;512.AutomobilesAutomobiles.629.222PQKBBOOK9910164723103321Laboratory Performance Tests for Automotive Gear Lubricants Intended for API GL-4, GL-5, and GL-6 Services2244493UNINA