1、 WORLDWIDE ENGINEERING STANDARDS General Specification GMW16871 Requirements for Material Compatibility with Transmission Fluid Copyright 2012 General Motors Company All Rights Reserved December 2012 Originating Department: North American Engineering Standards Page 1 of 4 1 Introduction Note: Nothin
2、g in this standard supercedes applicable laws and regulations. Note: In the event of conflict between the English and domestic language, the English language shall take precedence. 1.1 Scope. This standard describes compatibility testing requirements for any coating, rust preventive, process aid, as
3、sembly aid, grease, lubricant or other contaminant that will come in contact with transmission fluid. Products or chemicals that have potential to contaminate transmission fluid shall complete this testing. The supplier and/or user of the product are responsible to prove compliance to this standard.
4、 1.2 Mission/Theme. Not applicable. 1.3 Classification. Not applicable. 2 References Note: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. ASTM D445 ASTM D2983 ASTM D892 ASTM D5185 ASTM D2270 ASTM D6082 2.2 GM Standards/Specificati
5、ons. GMW3059 GMW16444 2.3 Additional References. Additional information about testing, including all forms are available from the GM Automatic Transmission Fluid (ATF) and Gear Oil Committee Chairman (available in GM Supply Power, “DEXRON”). 3 Test Preparation and Evaluation 3.1 Resources. 3.1.1 Cal
6、ibration. The test facilities and equipment shall be in good working order and shall have a valid calibration label. 3.1.2 Alternatives. Alternative test facilities and equipment may also be used; however, all measuring variables as specified in this standard shall be determined correctly with respe
7、ct to their physical definition. 3.1.3 Facilities. All testing must be completed at an independent test facility or a laboratory previously approved by GM Powertrain Materials Engineering. 3.1.4 Equipment. Not applicable. 3.1.5 Test Vehicle/Test Piece. The test material is the coating, rust preventi
8、ve, process aid, assembly aid, grease, lubricant or other contaminant that will come in contact with transmission fluid. 3.1.6 Test Time. Not applicable. 3.1.7 Test Required Information. Appendix A must be completed and submitted to the testing laboratory before any testing can begin. Based on the i
9、nformation provided in Appendix A, GM Powertrain Materials Engineering will determine the concentration of product in transmission fluid to be tested. 3.1.8 Personnel/Skills. Not applicable. 3.2 Preparation. Not applicable. 3.3 Conditions. 3.3.1 Environmental Conditions. Not applicable. 3.3.2 Test C
10、onditions. Deviations from the requirements of this standard shall have been agreed upon. Such requirements shall be specified on component drawings, test certificates, reports, etc. 3.4 Instructions. Not applicable. 3.5 Data. Not applicable. 3.6 Safety. This standard may involve hazardous materials
11、, operations, and equipment. This standard does not propose to address all the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 3
12、.7 Documentation. Samples of components or material released to this standard shall be tested Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARD
13、S GMW16871 Copyright 2012 General Motors Company All Rights Reserved December 2012 Page 2 of 4 for conformity with the requirements of this standard and approved by the responsible GM Department prior to the start of delivery of production level components or materials. Any change to the component o
14、r material, e.g., design, function, properties, manufacturing process and/or location of manufacture requires a new release of the product. It is the sole responsibility of the supplier to provide the customer, unsolicited, with documentation of any change or modification to the product/process, and
15、 to apply for a new release. If not otherwise agreed to, the entire verification test shall be repeated and documented by the supplier prior to start of delivery of the modified or changed product. In some cases, a shorter test can be agreed to between the responsible GM department and the supplier.
16、 3.7.1 Test Results. 3.7.1.1 Interpretation of Results. GM Powertrain Materials Engineering will review the test results and reserves the right to determine whether a product meets this standard. Additional testing may be required based on the type of product or the test results. A test report forma
17、t is available from GM Powertrain Materials Engineering. 3.7.2 Test Documentation. Standard report format for each test and test condition listed in Appendix B shall be provided by the test lab to the GM ATF and Gear Oil Committee for review and approval. 4 Requirements and Procedure Appendix B defi
18、nes the testing requirements. Any product that does not meet all the requirements defined herein is considered not compatible with transmission fluid. 5 Provisions for Shipping Not applicable. 6 Notes 6.1 Glossary. Not applicable. 6.2 Acronyms, Abbreviations, and Symbols. ATF Automatic Transmission
19、Fluid GM General Motors GSSLT Global Subsystem Leadership Team N/A Not applicable 7 Additional Paragraphs 7.1 All parts or systems supplied to this standard must comply with the requirements of GMW3059, Restricted and Reportable Substances for Parts. 8 Coding System This standard shall be referenced
20、 in other documents, drawings, etc., as follows: GMW16871 9 Release and Revisions This standard was originated in October 2012. It was first approved by the Fuels, Fluids, Lubricants Global Subsystem Leadership Team (GSSLT) in December 2012. It was first published in December 2012. Issue Publication
21、 Date Description (Organization) 1 DEC 2012 Initial publication. Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW16871 Copyright 2012 Gen
22、eral Motors Company All Rights Reserved December 2012 Page 3 of 4 Appendix A GM Transmission Fluid Compatibility Test Information The following information must be completely filled out and provided to either the test lab or to the GM Powertrain Materials Engineering Fuels and Lubricants Group. Requ
23、ired Information: Supplier: Contact Name: Phone Number: Product Name: Product Description; Product Application Method: Why Is This Material Being Submitted? Is This Product New to GM? Yes No If No, what GM application(s) have previously used it? What GM Powertrain Transmission Uses the Product (i.e.
24、, 6T40) At What Location Is the Product Applied? Amount To Be Used Per Transmission Built (i.e., 5.0 mL, 2.5 g) Percent That Could Come In Contact With the Transmission Fluid (i.e., 100%): List any additional miscellaneous information below. Include as much information as possible. Copyright General
25、 Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW16871 Copyright 2012 General Motors Company All Rights Reserved December 2012 Page 4 of 4 Appendix B The c
26、ontrol sample is 100% transmission fluid. The following tests must be completed on the control sample and three (3) concentrations of the product in question blended into transmission fluid at 50%, 100% and 200% of the actual concentration. The blends shall be aged at 150 C for 72 h before performin
27、g any tests. However, the DEXRON-VI Low Speed Carbon Fiber Friction Test is only required to be run on the control sample and 100% of actual concentration sample. Test Method Units Requirement Kinematic Viscosity, 40 C ASTM D445 cSt Equivalent to Control Kinematic Viscosity, 100 C ASTM D445 cSt Equi
28、valent to Control Brookfield Viscosity at -40 C ASTM D2983 cP Equivalent to Control Viscosity Index ASTM D2270 None Report Elemental Analysis: Boron ASTM D5185 ppm Report Calcium ASTM D5185 ppm Report Phosphorus ASTM D5185 ppm Report Silicon ASTM D5185 ppm Report Zinc ASTM D5185 ppm Report Magnesium
29、 ASTM D5185 ppm Report Other elements 50 ppm ASTM D5185 ppm Report DEXRON-VI Low Speed Carbon Fiber Friction GMW16444 Test AC, Appendix J, Modified Note 1 N/A Equivalent to Control Foam, Sequence I thru III ASTM D892, Option A ml/ml Equivalent to Control Foam, Sequence IV ASTM D6082 ml/ml Equivalent
30、 to Control Aesthetics 21-day Thermal Soak at 5 C GM Defined N/A Report 21-day Thermal Soak at 24 C GM Defined N/A Report 21-day Thermal Soak at 50 C GM Defined N/A Report Aeration GMW16444 Test AD, Appendix K N/A Equivalent to Control N/A: Not applicable Note 1: The DEXRON-VI Low Speed Carbon Fiber
31、 Friction Test measures friction coefficients at three (3) different temperatures and three (3) different pressures. For this standard, the friction coefficients at the maximum temperature (120 C) and maximum pressure (1041 kPa) must be measured. Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
