ASTM D5760-09

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of the standard as published by ASTM is to be considered the official document.
Designation:D5760–05 Designation: D5760 – 09
Standard Specification for
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Performance of Manual Transmission Gear Lubricants
This standard is issued under the fixed designation D5760; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This specification lists the test methods and acceptance criteria for determining the acceptability of lubricants used in
nonsynchronized heavy duty manual transmissions.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parenthesesNo other units of
measurement are for information only. included in this standard.
2. Referenced Documents
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2.1 ASTM Standards:
D130 Test Method for Corrosiveness to Copper from Petroleum Products by Copper Strip Test
D892 Test Method for Foaming Characteristics of Lubricating Oils
D5182 Test Method for Evaluating the Scuffing Load Capacity of Oils (FZG Visual Method)
D5579 Test Method for Evaluating the Thermal Stability of Manual Transmission Lubricants in a Cyclic Durability Test
D5662 Test Method for Determining Automotive Gear Oil Compatibility with Typical Oil Seal Elastomers
D5704 Test Method for Evaluation of the Thermal and Oxidative Stability of Lubricating Oils Used for Manual Transmissions
and Final Drive Axles
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2.2 Federal Standards:
Federal Standard No. 791C, Method 3430.2Method3430.2 Compatibility Characteristics of Universal Gear Lubricants
Federal Standard No. 791C, Method 3440.1Method3440.1 Storage Solubility Characteristics of Universal Gear Lubricants
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2.3 Military Standard: SAE Publications:
MIL-PRF-2105ELubricating Oil, Gear, Multipurpose SAE J2360 Lubricating Oil, Gear Multipurpose (Metric) Military Use
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 nonsynchronized transmission, nnonsynchronized transmission, n—a transmission having no means for synchronizing the
speedsofengagingelements.Typicalheavy-dutymanualtransmissionshavenosuchmeansforgearengagementbytheshiftlever,
but may have such means for pneumatic engagement of auxiliary range gears.
3.1.2 oil seal compatibility, noil seal compatibility, n—in lubricants for lubricating manual transmissions and final drive axles,
prevention of chemical or thermal degradation of seal elastomers typically observed as hardening, cracking, or excessive swelling
in a manner which would result in oil leakage.
3.1.3 thermal oxidation, nthermal oxidation, n—in lubricants used for lubricating manual transmissions and final drive axles,
deterioration of the lubricant under high-temperature conditions which is observed as viscosity increase of the lubricant, insolubles
formation in the lubricant, deposit formation on the parts, or a combination thereof.
4. Performance Classification
4.1 MT-1—The temporary designation MT-1 has been assigned to identify the category for manual transmissions, apart from
API Service Category GL-4. (SeeAPI Category MT-1—The designationAPI Category MT-1 identifies the category of lubricants
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This specification is under the jurisdiction ofASTM Committee D02 on Petroleum Products and Lubricants and is the direct responsibility of Subcommittee D02.B0.03
on Automotive Gear Lubricants & Fluids.
Current edition approved April 1, 2005.15, 2009. Published May 2005.October 2009. Originally approved in 1995. Last previous edition approved in 19952005 as
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D5760–95 .D5760–05. DOI: 10.1520/D5760-059.
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For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
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Information available from Commanding Officer, Army Materials and Mechanics Research Center, Attention: AMXMR-TMS, Watertown, MA 02127.
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Available from U.S. Government Printing Office Superintendent of Documents, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
www.access.gpo.gov.
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Available from U.S. Government Printing Office Superintendent of Documents, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401.
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Available from SAE International (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001, http://www.sae.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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