ASTM_D_5760_-_19.pdf

Designation:D576019Standard Specification forPerformance of Manual Transmission Gear Lubricants1This standard is issued under the fixed designation D5760;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This specification lists the test methods and acceptancecriteria for determining the acceptability of lubricants used innonsynchronized heavy duty manual transmissions.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.3 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D130 Test Method for Corrosiveness to Copper from Petro-leum Products by Copper Strip TestD892 Test Method for Foaming Characteristics of Lubricat-ing OilsD5182 Test Method for Evaluating the Scuffing Load Ca-pacity of Oils(FZG Visual Method)D5579 Test Method for Evaluating the Thermal Stability ofManual Transmission Lubricants in a Cyclic DurabilityTestD5662 Test Method for Determining Automotive Gear OilCompatibility with Typical Oil Seal ElastomersD5704 Test Method for Evaluation of the Thermal andOxidative Stability of Lubricating Oils Used for ManualTransmissions and Final Drive AxlesD7603 Test Method for Determination of Storage Stabilityand Compatibility in Automotive Gear Oils2.2 SAE Publications:3SAE J2360 Lubricating Oil,Gear Multipurpose(Metric)Military Use3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 nonsynchronized transmission,na transmission hav-ing no means for synchronizing the speeds of engagingelements.Typical heavy-duty manual transmissions have nosuch means for gear engagement by the shift lever,but mayhave such means for pneumatic engagement of auxiliary rangegears.3.1.2 oil seal compatibility,nin lubricants for lubricatingmanual transmissions and final drive axles,prevention ofchemical or thermal degradation of seal elastomers typicallyobserved as hardening,cracking,or excessive swelling in amanner which would result in oil leakage.3.1.3 thermal oxidation,nin lubricants used for lubricat-ing manual transmissions and final drive axles,deterioration ofthe lubricant under high-temperature conditions which isobserved as viscosity increase of the lubricant,insolublesformation in the lubricant,deposit formation on the parts,or acombination thereof.4.Performance Classification4.1 API Category MT-1The designation API CategoryMT-1 identifies the category of lubricants intended for use innonsynchronized manual transmissions,apart from API Ser-vice Category GL-4.See Appendix X1 for background infor-mation on this category.5.Performance Requirements5.1 API Category MT-1 performance requirements for can-didate gear lubricants are provided in Table 1.6.Number of Tests and Retests6.1 Test Method D5704In determining whether an oilmeets the required limits the following rules shall apply:6.1.1 No more than three operationally valid tests are to beconducted for compliance testing.1This specification is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.B0.03 on Automotive Gear Lubricants&Fluids.Current edition approved May 1,2019.Published June 2019.Originallyapproved in 1995.Last previous edition approved in 2013 as D5760 13.DOI:10.1520/D5760-19.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from SAE International(SAE),400 Commonwealth Dr.,Warrendale,PA 15096-0001,http:/www.sae.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 6.1.2 L-60-1 data used for API Category MT-1 approvalcannot be generated prior to ASTM Test Monitoring Center(TMC)4calibration of the stand for all API Category MT-1parameters.Stand bias adjustment factors based on referenceoil test results are applied when appropriate.6.1.3 After applying any appropriate stand bias adjustmentfactors,the first