1、 WORLDWIDE ENGINEERING STANDARDS Material Specification GMW16433 DEXRON Gear Oil 75W - 90 Copyright 2012 General Motors Company All Rights Reserved March 2012 Originating Department: North American Engineering Standards Page 1 of 8 1 Scope Note: Nothing in this standard supercedes applicable laws an
2、d regulations. Note: In the event of conflict between the English and domestic language, the English language shall take precedence. 1.1 Material Description. This specification covers DEXRON Gear Oil primarily for use in axles, in cars or trucks with open or locking differentials. This specificatio
3、n describes, in terms of laboratory and simulated service test results, the requirements for a minimum-performance fluid. 1.2 Symbols. Not applicable. 1.3 Typical Applications. Lubricant for axles and power transfer units. 1.4 Remarks. 1.4.1 This specification may involve hazardous materials, operat
4、ions, and equipment. This specification does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this specification to establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior t
5、o use. 1.4.2 This specification uses International System of Units (SI) units as standard per IEEE/ASTM SI 10, except for certain components, which are commercially available only in American conventional units. 1.4.3 This specification uses the Rounding-Off Method per ASTM E29 for significant figur
6、es to determine conformance to specification requirements. 1.4.4 Unless otherwise noted, part numbers of this specification refer to those of General Motors Powertrain. 2 References Note: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Specificati
7、ons. ASTM D92 ASTM D5800 ASTM D97 ASTM D6121 ASTM D130 ASTM D6304 ASTM D412 ASTM D6594 ASTM D445 ASTM D6922 ASTM D471 ASTM D7038 ASTM D664 ASTM D7450 ASTM D892 ASTM E29 ASTM D1193 CEC L-45-99 ASTM D1552 CEC L-48-A-00 ASTM D2240 CEC L-84-02 ASTM D2270 EHDPROC_11 ASTM D2983 FTM-791, method 3430/3440 A
8、STM D4052 FVA-2/IV ASTM D4289 IEEE/ASTM SI 10 ASTM D4629 ISO 37 ASTM D4739 SAE J306 ASTM D5185 VW PV 1454 ASTM D5704 Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWI
9、DE ENGINEERING STANDARDS GMW16433 Copyright 2012 General Motors Company All Rights Reserved March 2012 Page 2 of 8 2.2 GM Standards/Specifications. GMW3059 2.3 Additional References. All GM DEXRON testing forms including Form A are available from the Team Leader for Service Parts Engineering and DEX
10、RON Licensing or the GM ATF and Gear Oil Committee Chairman, via GM Supply Power. Folders/ENGINEERING/Powertrain Product Engineering/Transmission. ( GM Aerated Seal Test Appendix B Metered Fuel Economy Federal Fuel Economy (FFE) (Highway) Metered Fuel Economy Federal Test Procedure (FTP) (City) TMC0
11、03 Material Safety Data (MSDS) Sheet guidance documents (available at ) 3 Requirements 3.1 Test Requirements. Form A (refer to 2.3) is required for testing to be started on gear lubricants pursuing DEXRON Gear Oil approval. 3.2 Mechanical Requirements. Test procedures shall be conducted as specified
12、, with no deviation, unless express written authorization is obtained from the General Motors Automatic Transmission Fluid (ATF) and Gear Oil Committee. Test parts are to be used as received. Replacement or modification of any part shall be made only if directed in this specification or to replace d
13、amaged parts. The laboratory must target to the mean of the specified test conditions. 3.3 Physical Requirements. Fluids qualified under this specification shall conform to SAE J306 and to the test methods and requirements as listed in Appendix A, Table A1. 3.4 Approved Additive Chemistries. 3.4.1 F
14、luids meeting this specification shall be manufactured using additive chemistries listed in Table A2, approved DEXRON Gear Oil Additive Chemistry Combinations. 3.5 Requirements for New Additive Chemistry Combinations. 3.5.1 Successful completion of a complete DEXRON Gear Oil Qualification Program (A
15、ppendix A, Table A1). 3.5.2 Successful completion of a complete DEXRON Gear Oil Qualification Program (Appendix A, Table A1) using the following fluid blends: 3.5.2.1 Seventy-Five (75%) Candidate, 25% Reference Fluid. 3.5.2.2 Fifty (50%) Candidate, 50% Reference Fluid. 3.5.2.3 Twenty-Five (25%) Cand
16、idate, 75% Reference Fluid. 3.5.2.4 If applicable, 50% Candidate, 50% any previously approved chemistry other than the Reference Fluid. 3.5.3 Successful completion of tests listed in Table A3. 3.5.4 Successful completion of a 241 000 km (150 000 mi) fleet test using the new candidate chemistry and b
17、lends of fluids from 3.5.2. A proposal for the fleet test shall be submitted to and approved by the GM ATF and Gear Oil Committee before commencing the fleet test. 3.5.5 Any additional testing as directed by the GM ATF and Gear Oil Committee. 3.6 Additional Requirements. 3.6.1 The test requirements
18、given in this specification are minimum or maximum acceptance limits for valid tests. No adjustments for test precision are to be applied as test variability was taken into account in the determination of the requirements. 3.6.2 The GM ATF and Gear Oil Committee reserves the right to require any add
19、itional tests that may be deemed necessary to ensure satisfactory performance of fluids submitted for qualification as DEXRON Gear Oil. 3.6.3 Validation Requirements. Testing necessary for validating the use of this lubricant shall be prescribed by materials engineering. Testing will include, but no
20、t be limited to, tests included in Section 3 of this specification, vehicle fleet testing, and Proving Ground Durability Tests. Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,
21、-GM WORLDWIDE ENGINEERING STANDARDS GMW16433 Copyright 2012 General Motors Company All Rights Reserved March 2012 Page 3 of 8 4 Manufacturing Process Not applicable. 5 Rules and Regulations 5.1 Legal Regulations. All materials must satisfy applicable laws, rules, regulations and recommendations vali
22、d in the country of usage. 5.2 Language. In the event of conflict between the English and domestic language, the English language shall take precedence. 5.3 Inspection and Rejection. All shipments of material or parts under contract or purchase order manufactured to this specification shall be equiv
23、alent in every respect to the initial samples approved by Engineering. There shall be no changes in either formulation or manufacturing processes permitted without prior notification and approval by Engineering. Lack of notification by the supplier constitutes grounds for rejection of any shipment.
24、While samples may be taken from incoming shipments and checked for conformance to this specification, the supplier shall accept the responsibility for incoming shipments meeting this specification without dependence upon purchasers inspection. The series of tests used to approve each batch of produc
25、t along with acceptance limits will be agreed upon by the purchaser and seller. The laboratory providing the certificate of analysis must also participate in a proficiency testing program (round robin) that is approved by the Fuels, Fluids, and Lubricants GSSLT or designate. The Fuels, Fluids, and L
26、ubricants GSSLT or designate must receive copies of the proficiency testing reports directly from the test program administrator. 5.4 Initial Source Approval. No shipment shall be made by any supplier until representative initial production samples have been approved by the Fuels, Fluids, and Lubric
27、ants Global Subsystem Leadership Team (GSSLT) or designees meeting the requirements of this specification. 5.5 Material Safety Data Sheets/Safety Data Sheets (MSDS/SDS). For new product submissions, or when a change in chemical composition of an existing product has occurred, a complete copy of the
28、Material Safety Data Sheet/Safety Data Sheet must be submitted in compliance with the Globally Harmonized System of Classification and Labeling of Chemicals (GHS) requirements or other country-specific MSDS/SDS requirements. In addition, product MSDS/SDS submissions must be in compliance with specif
29、ic country General Motors TMC003 Material Safety Data Sheet/Safety Data Sheet guidance documents where available. 5.6 All materials supplied to this standard must comply with the requirements of GMW3059, Restricted and Reportable Substances for Parts. 5.7 Trademark Licensing. 5.7.1 Licenses to use t
30、he trademark DEXRON and related “GO“ identification numbers are issued for fluids which have been tested by an independent laboratory and/or by General Motors and subsequently approved by the General Motors Automatic Transmission Fluid and Gear Oil Committee. Note: For information on qualification o
31、f service replacement fluids for use in General Motors axles, contact, the Team Leader for Service Parts Engineering and DEXRON Licensing or the GM ATF and Gear Oil Committee Chairman, via GM Supply Power. Folders/ENGINEERING/Powertrain Product Engineering/Transmission. ( 6 Approved Sources Engineer
32、ing qualifications of an approved source are required for this standard. Only sources listed in the GM Materials File under this standard number have been qualified by Engineering as meeting the requirements of this standard. For other GM locations, the responsible Engineering group should be contac
33、ted to obtain the approved source in that individual country. 7 Notes 7.1 Glossary. 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 GMW16433
34、 Copyright 2012 General Motors Company All Rights Reserved March 2012 Page 4 of 8 Reference: Something of known performance characteristics, designated by the GM ATF and Gear Oil Committee. 7.2 Acronyms, Abbreviations, and Symbols. AAM American Axle and Manufacturing ARKL Axialrillen-Kugellager ATF
35、Automatic Transmission Fluid DKA Deutscher Koordinierungsausschuss im CEC FFE Federal Fuel Economy (Highway Fuel Economy) FTP Federal Test Procedure (City Fuel Economy) FVA Forschungsvereinigung Antriebstechnik FZG Forschungsstelle fur Zahnrader und Getriebebau GHS Globally Harmonized System of Clas
36、sification Labeling of Chemicals GSSLT Global Subsystem Leadership Team IR Infrared KV Kinematic Viscosity MSDS Material Safety Data Sheet ppm parts per million SDS Safety Data Sheet SI International System of Units TP Test Procedure UHP Ultra-High Purity VI Viscosity Index WIP Wheel (Hop) Inducing
37、Procedure 8 Coding System This standard shall be referenced in other documents, drawings, etc., as follows: Material per GMW16433 9 Release and Revisions This standard was originated in October 2010. It was first approved by the GM ATF and Gear Oil Committee in August 2011. It was first published in
38、 August 2011. Issue Publication Date Description (Organization) 1 AUG 2011 Initial publication. 2 MAR 2012 Updated: Table A1: Brookfield Viscosity and DKA Oxidation Stability Requirement. (Materials-Fuels, Fluids & Lubricants) Copyright General Motors Company Provided by IHS under license with Gener
39、al Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW16433 Copyright 2012 General Motors Company All Rights Reserved March 2012 Page 5 of 8 Appendix A Table A1: DEXRON Gear Oil Test Methods and Requirements Test Met
40、hod Requirement Appearance Visual Inspection Clear Amber Liquid Elemental Analysis ASTM D5185 Report ppm (parts per million): Al, B, Ca, Fe, K, Mg, Mn, Na, Ni, P, Sb, Si, Zn ASTM D1552 Report, weight percent (%) S ASTM D4629 Report, ppm: N Water Content ASTM D6304 0.10% weight maximum Fluid Profile
41、Proprietary GM Test Report Miscibility ASTM D6922 No Separation or Color Change at End of Test Using Reference Fluid Storage and Compatibility FTM 791, method 3430/3440 Pass Kinematic Viscosity ASTM D445 1) Report, cSt 10 C (50 F) 2) 80 cSt minimum 40 C (104 F) 3) 14.0 cSt minimum 100 C (212 F) 4) R
42、eport, cSt 150 C (302 F) Viscosity Index ASTM D2270 165 minimum Density ASTM D4052 (15 C) Report, typical 0.856 g/mL Pour Point ASTM D97 -45 C maximum (-49 F) Fire Point ASTM D92 220 C minimum (428 F) Flash Point ASTM D92 150 C minimum (302 F) Total Base Number ASTM D4739 Report Total Acid Number AS
43、TM D664 Report Brookfield Viscosity ASTM D2983 1) Report, cP -10 C (14 F) 2) 4500 cP maximum -20 C (-4 F) 3) Report, cP -30 C (-22 F) 4) 75 000 cP maximum -40 C (-40 F) Copper Corrosion ASTM D130, 3 h, 121 C Better than 2A DKA Oxidation Stability CEC L-48-A-00 1) 55% KV100 increase maximum 160 C for
44、 192 h 2) 65% KV40 increase maximum Method B 3) VI Change, Report 4) TAN, Report 5) Flask sludge rating, Report with picture 6) Blotter spot, Provide picture 7) IR absorbance, Report Shear Stability CEC L-45-99, 20 h at 100 C KV100 5/5 rating 2) Ridging 8/8 rating 3) Rippling 8/8 rating 4) Pitting 9
45、.3/9.3 rating 5) Scoring 9/9 rating Stressed L-37 ASTM D6121 1) Wear 5/5 rating (Modified Sequence 2) 2) Ridging 8/8 rating 16 h at 3) Rippling 8/8 rating 163 C 1.7 C 4) Pitting 9.3/9.3 rating 5) Scoring 9/9 rating L-60-1 Oxidation Stability ASTM D5704 1) 15% KV100 (maximum) 2) 0.5% Pentane Insolubl
46、e. (maximum) 3) 0.5% Toluene Insoluble. (maximum) 4) Carbon Varnish Rating 8.5 (minimum) 5) Sludge Rating 9.4 (minimum) L-33-1: Rust ASTM D7038 Minimum Rating: 9 Standard L-42 ASTM D7450 1) Scoring, Pinion Coast Side = Reference 2) Scoring, Crown Coast Side = Reference Canadian L-42 ASTM D7450 1) Sc
47、oring, Pinion Coast Side = Reference 2) Scoring, Crown Coast Side = Reference Note: Reference = Something of known performance characteristics, designated by the GM ATF and Gear Oil Committee. Table A2: DEXRON Gear Oil Additive Chemistry Combinations Company Chemistry Treat Rate (wt%) Afton Chemical
48、 Corporation HiTEC 348 HiTEC 5349 23.83 14.37 Table A3: DEXRON Gear Oil Additional Test Methods and Requirements for New Chemistries Test Method Requirement Fuel Economy Metered Fuel Economy - FTP 1) FTP (%) Improvement, Better or Equal to Reference Metered Fuel Economy - FFE 2) FFE (%) Improvement, Better or Equal to Reference 3) Combined (%) Improvement, Better or Equal to Reference ARKL VW PV 1454 Better or Equal to Reference FZG Pitting
