ASTM International - ASTM D5579-19

Standard Test Method for Evaluating the Thermal Stability of Manual Transmission Lubricants in a Cyclic Durability Test

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Organization: ASTM International
Publication Date: 1 May 2019
Status: active
Page Count: 19
ICS Code (Lubricants, industrial oils and related products): 75.100
significance And Use:

5.1 This test method is used to evaluate automotive manual transmission fluids for thermal instability, which results in deterioration of synchronizer performance.

5.2 This test method may... View More

scope:

1.1 This test method covers the thermal stability of fluids for use in heavy duty manual transmissions when operated at high temperatures.

1.2 The lubricant performance is measured by the number of shifting cycles that can be performed without failure of synchronization when the transmission is operated while continuously cycling between high and low range.

1.3 Correlation of test results with truck transmission service has not been established. However, the procedure has been shown to appropriately separate two transmission lubricants, which have shown satisfactory and unsatisfactory field performance in the trucks of one manufacturer.

1.4 Changes in this test method may be necessary due to refinements in the procedure, obsolescence of parts, or reagents, and so forth. These changes will be incorporated by Information Letters issued by the ASTM Test Monitoring Center (TMC). The test method will be revised to show the content of all the letters, as issued.

1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.5.1 Exception-When materials, products, or equipment are available only in inch-pound units, SI units are omitted.

1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.7 This test method is arranged as follows:

  Section
Scope  1
Referenced Documents  2
Terminology  3
Summary of Test Method  4
Significance and Use  5
Apparatus  6
 Test Transmission  6.2
 Transmission Mounts  6.3
 Oil-Circulating System  6.4
 Oil Return Hole  6.5
 Air Pressure Controls  6.6
 Drive System  6.7
 Instrumentation  6.8
 Thermocouple Placement  6.9
Reagents and Materials  7
Safety  8
Preparation of Apparatus  9
 Cleaning of Parts  9.1
 Assembly  9.2
Calibration  10
 Transmission and Test Stand Calibration  10.1
 Reference Oils  10.2
 Reference Oil Test Frequency  10.3
 Instrumentation Calibration  10.4
 Shift Time Calibration  10.5
Operating Procedure  11
 System Flush and Charge  11.1
 Test Operation  11.2
 Shut-Down Procedure  11.3
 Transmission Disassembly  11.4
Determination of Test Results  12
 Failure Criteria  12.1
 Shifter Fork Wear  12.2
 Test Validity Determination  12.3
Report  13
Precision and Bias  14
Keywords  15
Test Validity Calculations and Limits Annex A5
HTCT Test Report Forms and Data Dictionary Annex A6
Manual Transmission Cyclic Durability Test Parts Inspection and Wear Measurements Annex A7

1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Document History

ASTM D5579-19
May 1, 2019
Standard Test Method for Evaluating the Thermal Stability of Manual Transmission Lubricants in a Cyclic Durability Test
1.1 This test method covers the thermal stability of fluids for use in heavy duty manual transmissions when operated at high temperatures. 1.2 The lubricant performance is measured by the number of...
April 1, 2016
Standard Test Method for Evaluating the Thermal Stability of Manual Transmission Lubricants in a Cyclic Durability Test
1.1 This test method covers the thermal stability of fluids for use in heavy duty manual transmissions when operated at high temperatures. 1.2 The lubricant performance is measured by the number of...
April 1, 2015
Standard Test Method for Evaluating the Thermal Stability of Manual Transmission Lubricants in a Cyclic Durability Test
1.1 This test method covers the thermal stability of fluids for use in heavy duty manual transmissions when operated at high temperatures. 1.2 The lubricant performance is measured by the number of...
May 1, 2014
Standard Test Method for Evaluating the Thermal Stability of Manual Transmission Lubricants in a Cyclic Durability Test
1.1 This test method covers the thermal stability of fluids for use in heavy duty manual transmissions when operated at high temperatures. 1.2 The lubricant performance is measured by the number of...
October 1, 2013
Standard Test Method for Evaluating the Thermal Stability of Manual Transmission Lubricants in a Cyclic Durability Test
1.1 This test method covers the thermal stability of fluids for use in heavy duty manual transmissions when operated at high temperatures. 1.2 The lubricant performance is measured by the number of...
December 1, 2012
Standard Test Method for Evaluating the Thermal Stability of Manual Transmission Lubricants in a Cyclic Durability Test
1.1 This test method covers the thermal stability of fluids for use in heavy duty manual transmissions when operated at high temperatures. 1.2 The lubricant performance is measured by the number of...
April 15, 2012
Standard Test Method for Evaluating the Thermal Stability of Manual Transmission Lubricants in a Cyclic Durability Test
1.1 This test method covers the thermal stability of fluids for use in heavy duty manual transmissions when operated at high temperatures. 1.2 The lubricant performance is measured by the number of...
October 1, 2010
Standard Test Method for Evaluating the Thermal Stability of Manual Transmission Lubricants in a Cyclic Durability Test
1.1 This test method covers the thermal stability of fluids for use in heavy duty manual transmissions when operated at high temperatures. 1.2 The lubricant performance is measured by the number of...
May 1, 2010
Standard Test Method for Evaluating the Thermal Stability of Manual Transmission Lubricants in a Cyclic Durability Test
1.1 This test method covers the thermal stability of fluids for use in heavy duty manual transmissions when operated at high temperatures. 1.2 The lubricant performance is measured by the number of...
October 1, 2009
Standard Test Method for Evaluating the Thermal Stability of Manual Transmission Lubricants in a Cyclic Durability Test
1.1 This test method covers the thermal stability of fluids for use in heavy duty manual transmissions when operated at high temperatures. 1.2 The lubricant performance is measured by the number of...
April 15, 2009
Standard Test Method for Evaluating the Thermal Stability of Manual Transmission Lubricants in a Cyclic Durability Test
1.1 This test method covers the thermal stability of fluids for use in heavy duty manual transmissions when operated at high temperatures. 1.2 The lubricant performance is measured by the number of...
May 1, 2006
Standard Test Method for Evaluating the Thermal Stability of Manual Transmission Lubricants in a Cyclic Durability Test
1.1 This test method covers the thermal stability of fluids for use in heavy duty manual transmissions when operated at high temperatures. 1.2 The lubricant performance is measured by the number of...
November 1, 2005
Standard Test Method for Evaluating the Thermal Stability of Manual Transmission Lubricants in a Cyclic Durability Test
1.1 This test method covers the thermal stability of fluids for use in heavy duty manual transmissions when operated at high temperatures. 1.2 The lubricant performance is measured by the number of...
May 1, 2004
Standard Test Method for Evaluating the Thermal Stability of Manual Transmission Lubricants in a Cyclic Durability Test
1.1 This test method covers the thermal stability of fluids for use in heavy duty manual transmissions when operated at high temperatures. 1.2 The lubricant performance is measured by the number of...
May 10, 2003
Standard Test Method for Evaluating the Thermal Stability of Manual Transmission Lubricants in a Cyclic Durability Test
1.1 This test method covers the thermal stability of fluids for use in heavy duty manual transmissions when operated at high temperatures. 1.2 The lubricant performance is measured by the number of...
June 10, 2001
Standard Test Method for Evaluating the Thermal Stability of Manual Transmission Lubricants in a Cyclic Durability Test
1.1 This test method covers the thermal stability of fluids for use in heavy duty manual transmissions when operated at high temperatures. 1.2 The lubricant performance is measured by the number of...
June 10, 2001
Standard Test Method for Evaluating the Thermal Stability of Manual Transmission Lubricants in a Cyclic Durability Test
1.1 This test method covers the thermal stability of fluids for use in heavy duty manual transmissions when operated at high temperatures. 1.2 The lubricant performance is measured by the number of...
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