1、Designation: D7320 10aStandard Test Method forEvaluation of Automotive Engine Oils in the Sequence IIIG,Spark-Ignition Engine1This standard is issued under the fixed designation D7320; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision
2、, 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.INTRODUCTIONThe test method described in this standard can be used by any properly equipped laboratory; it doesnot r
3、equire the assistance of anyone outside that laboratory. However, the ASTM Test MonitoringCenter (TMC)2provides reference oils and an assessment of the test results obtained on those oils bythe laboratory (see Annex A1). By these means, the laboratory will know whether their use of the testmethod gi
4、ves results statistically similar to those obtained by other laboratories. Furthermore, variousagencies require that a laboratory utilize the TMC services in seeking qualification of oils againstspecifications. For example, the U.S. Army imposes such a requirement in connection with severalArmy engi
5、ne lubricating oil specifications.Accordingly, this test method is written for use by laboratories that utilize the TMC services.Laboratories that choose not to use those services may simply ignore those portions of the test methodthat refer to the TMC.This test method may be modified by means of In
6、formation Letters issued by the TMC. In addition,the TMC may issue supplementary memoranda related to the test method (see A1.8).1. Scope1.1 This test method covers an engine test procedure forevaluating automotive engine oils for certain high-temperatureperformance characteristics, including oil th
7、ickening, varnishdeposition, oil consumption, as well as engine wear. Such oilsinclude both single viscosity grade and multiviscosity gradeoils that are used in both spark-ignition, gasoline-fueledengines, as well as in diesel engines.1.1.1 Additionally, with nonmandatory supplemental re-quirements,
8、 a IIIGA Test (Mini Rotary Viscometer and ColdCranking Simulator measurements), a IIIGVS Test (EOTviscosity increase measurement), or a IIIGB Test (phosphorousretention measurement) can be conducted. These supplementaltest procedures are contained in Appendixes Appendix X1,Appendix X2, and Appendix
9、X3, respectively.NOTE 1Companion test methods used to evaluate engine oil perfor-mance for specification requirements are discussed in SAE J304.1.2 The values stated in SI units are to be regarded asstandard. No other units of measurement are included in thisstandard.1.2.1 ExceptionWhere there is no
10、 direct SI equivalentsuch as screw threads, national pipe threads/diameters, andtubing size.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health pract
11、ices and determine the applica-bility of regulatory limitations prior to use. Specific warningstatements are provided in 6.14.1.1 and 7.1.1.4 This test method is arranged as follows:SectionIntroductionScope 1Referenced Documents 2Terminology 3Summary of Test Method 4Significance and Use 5Apparatus 6
12、Laboratory 6.1Drawings 6.2Specified Equipment 6.3Test Engine 6.4Engine Parts 6.4.1Engine Speed and Load Control 6.51This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products and Lubricants and is the direct responsibility of SubcommitteeD02.B0.01 on Passenger Car Engine O
13、ils.Current edition approved July 1, 2010. Published August 2010. Originallyapproved in 2006. Last previous edition approved in 2010 as D732010. DOI:10.1520/D7320-10a.2Until the next revision of this test method, the ASTM Test Monitoring Centerwill update changes in the test method by means of infor
14、mation letters. Informationletters may be obtained from theASTM Test Monitoring Center, 6555 PennAvenue,Pittsburgh, PA 15206-4489. Attention: Administrator. This edition incorporatesrevisions in all information letters through No. 095.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700
15、, West Conshohocken, PA 19428-2959, United States.SectionFluid Conditioning Module 6.6Engine Cooling System 6.6.1Flushing Tank 6.7Coolant Mixing Tank 6.8Condenser Cooling Systems 6.9Engine Oil-Cooling System 6.10Fuel System 6.11Induction Air Supply Humidity, Temperature, and Pressure 6.12Temperature
16、 Measurement 6.13Thermocouple Location 6.13.1Air-to-Fuel Ratio Determination 6.14Injector Flow Testing 6.14.1Exhaust and Exhaust Back Pressure Systems 6.15Blowby Flow Rate Measurement 6.16Pressure Measurement and Sensor Location 6.17Reagents and Materials 7Test Fuel 7.1Engine and Condenser Coolant 7
17、.2Coolant Additive 7.3Coolant Preparation 7.4Pre-Test Cleaning Materials 7.5Sealing and Anti-seize Compounds 7.6Test Oil Sample Requirements 8Preparation of Apparatus 9Condenser Cleaning 9.1Intake Manifold Cleaning 9.2Cleaning of Engine Parts (other than the block and heads) 9.3Connecting Rod Cleani
18、ng 9.4Engine Block Cleaning 9.5Cylinder Head Cleaning 9.6Engine Build-up Procedure 9.7General Information 9.7.1Special Parts 9.7.2Hardware Information 9.7.3Fastener Torque Specifications and Torquing Procedures 9.7.4Main Bearing Cap Bolts 9.7.4.1Cylinder Head Bolts 9.7.4.2Torques for Miscellaneous B
19、olts, Studs, and Nuts 9.7.4.3Parts Replacement 9.8Engine Block Preparation 9.9Piston Fitting and Numbering 9.10Piston Ring Fitting 9.10.1Pre-Test Camshaft and Lifter Measurements 9.11Camshaft Bearing Installation 9.12Camshaft Installation 9.13Main Bearings 9.14Crankshaft Installation 9.14.1Main Bear
20、ing Cap Installation 9.14.2Crankshaft Sprocket 9.15Camshaft Sprocket and Timing Chain 9.16Crankshaft End Play 9.17Piston Pin Installation 9.18Piston Installation 9.18.1Harmonic Balancer 9.19Connecting Rod Bearings 9.20Engine Front Cover 9.21Coolant Inlet Adapter 9.22Oil Dipstick Hole 9.23Oil Pan 9.2
21、4Cylinder Head Assembly 9.25Adjustment of Valve Spring Loads 9.26Cylinder Head Installation 9.27Hydraulic Valve Lifters 9.28Pushrods 9.29Valve Train Loading 9.30Intake Manifold 9.31Rocker Covers 9.32Water Inlet Adapter 9.33Condenser 9.34Coolant Outlet Adapter 9.35Oil Filter Adapter 9.36Oil Sample Va
22、lve 9.37Ignition System 9.38Throttle Body 9.39Accessory Drive Units 9.40Exhaust Manifolds, Water-Cooled 9.41Engine Flywheel 9.42SectionPressure Checking of Engine Coolant System 9.43Lifting of Assembled Engines 9.44Mounting the Engine on the Test Stand 9.45External Cooling System Cleaning 9.46Engine
23、 Coolant Jacket Cleaning (Flushing) 9.47Coolant Charging 9.48Test Oil Charging 9.49Engine Oil Pump Priming 9.50Calibration 10Laboratory and Engine Test Stand Calibration 10.1Testing of Reference Oils 10.2Reference Oil Test Frequency 10.3Reporting of Reference Oil Test Results 10.4Evaluation of Refer
24、ence Oil Test Results 10.5Status of Non-Reference Oil Tests Relative to ReferenceOil Test10.6Status of Test Stands Used for Non-Standard Tests 10.7Data Acquisition and Control 10.8Sample Rate 10.8.1Measurement Accuracy 10.8.2Temperature 10.8.3Pressure 10.8.4Flow 10.8.5Speed 10.8.6Load 10.8.7Measurem
25、ent Resolution 10.8.8System Time Response 10.8.9Quality Index 10.8.10Engine Operating Procedure 11Dipstick and Hole Plug 11.1Dipstick Hole O-ring 11.2Engine Start-up and Shutdown Procedures 11.3Start-up 11.4Scheduled Shutdown 11.5Non-Scheduled Shutdowns 11.6Oil Sampling 11.7Oil Leveling 11.8Air-to-F
26、uel-Ratio Measurement and Control 11.9Air-to-Fuel Ratio Verification 11.10Blowby Flow Rate Measurement 11.11NOx Determinations 11.12Data Recording 11.13Initial run (10 min) 11.14Engine Oil Quality Testing (100 h) 11.15Test Termination 11.16Determination of Test Results 12Engine Disassembly 12.2Prepa
27、ration of Parts for Rating of Sticking, Deposits,and Plugging12.3Piston Deposit Rating 12.4Post-Test Camshaft and Lifter Wear Measurements 12.5Viscosity Test 12.6Testing Oil Samples for Wear Metals 12.7Blowby Flow Rate Measurements 12.8Oil Consumption Computation 12.9Photographs of Test Parts 12.10R
28、etention of Representative Test Parts 12.11Severity Adjustments 12.12Determination of Operational Validity 12.13Report 13Report Forms 13.1Precision of Reported Units 13.2Precision and Bias 14Keywords 15The Role of the ASTM Test Monitoring Center (TMC) andthe Calibration ProgramAnnex A1Sequence IIIG
29、Test Parts Replacement Guidelines Annex A2Sequence IIIG Determination Volume of Engine Oilin Pan Annex A3Sequence IIIG Test Fuel Analysis Annex A4Sequence IIIG Test Reporting Annex A5Sequence IIIG Test Air-to-Fuel Ratio Control Flow Chart Annex A6Sequence IIIG Test Set Points and Control States Anne
30、x A7Sequence IIIG Quality Index Upper and Lower Values Annex A8Sequence IIIG Engine Oil Level Worksheet Annex A9Blowby Flow Rate Determination Annex A10Safety Hazards Annex A11Sequence IIIG Blueprint Listing Annex A12D7320 10a2SectionFluid Condition Module components Annex A13Engine Build Worksheets
31、 Annex A14Sequence IIIGA Test Procedure Appendix X1Sequence IIIGVIS Test Procedure Appendix X2Sequence IIIGB Test Procedure Appendix X32. Referenced Documents2.1 ASTM Standards:3D86 Test Method for Distillation of Petroleum Products atAtmospheric PressureD130 Test Method for Corrosiveness to Copper
32、from Pe-troleum Products by Copper Strip TestD235 Specification for Mineral Spirits (Petroleum Spirits)(Hydrocarbon Dry Cleaning Solvent)D240 Test Method for Heat of Combustion of LiquidHydrocarbon Fuels by Bomb CalorimeterD323 Test Method for Vapor Pressure of Petroleum Prod-ucts (Reid Method)D381
33、Test Method for Gum Content in Fuels by Jet Evapo-rationD445 Test Method for Kinematic Viscosity of Transparentand Opaque Liquids (and Calculation of Dynamic Viscos-ity)D525 Test Method for Oxidation Stability of Gasoline(Induction Period Method)D1319 Test Method for Hydrocarbon Types in LiquidPetro
34、leum Products by Fluorescent Indicator AdsorptionD2699 Test Method for Research Octane Number of Spark-Ignition Engine FuelD2700 Test Method for Motor Octane Number of Spark-Ignition Engine FuelD3231 Test Method for Phosphorus in GasolineD3237 Test Method for Lead in Gasoline by Atomic Ab-sorption S
35、pectroscopyD3244 Practice for Utilization of Test Data to DetermineConformance with SpecificationsD3338 Test Method for Estimation of Net Heat of Combus-tion of Aviation FuelsD3343 Test Method for Estimation of Hydrogen Content ofAviation FuelsD4052 Test Method for Density, Relative Density, and API
36、Gravity of Liquids by Digital Density MeterD4175 Terminology Relating to Petroleum, PetroleumProducts, and LubricantsD4485 Specification for Performance of Engine OilsD4684 Test Method for Determination of Yield Stress andApparent Viscosity of Engine Oils at Low TemperatureD4815 Test Method for Dete
37、rmination of MTBE, ETBE,TAME, DIPE, tertiary-Amyl Alcohol and C1to C4Alco-hols in Gasoline by Gas ChromatographyD5185 Test Method for Determination of Additive Ele-ments, Wear Metals, and Contaminants in Used Lubricat-ing Oils and Determination of Selected Elements in BaseOils by Inductively Coupled
38、 Plasma Atomic EmissionSpectrometry (ICP-AES)D5191 Test Method for Vapor Pressure of Petroleum Prod-ucts (Mini Method)D5293 Test Method for Apparent Viscosity of Engine Oilsand Base Stocks Between 5 and 35C Using Cold-Cranking SimulatorD5452 Test Method for Particulate Contamination in Avia-tion Fue
39、ls by Laboratory FiltrationD5453 Test Method for Determination of Total Sulfur inLight Hydrocarbons, Spark Ignition Engine Fuel, DieselEngine Fuel, and Engine Oil by Ultraviolet FluorescenceD5862 Test Method for Evaluation of Engine Oils inTwo-Stroke Cycle Turbo-Supercharged 6V92TA DieselEngine4D659
40、3 Test Method for Evaluation of Automotive EngineOils for Inhibition of Deposit Formation in a Spark-Ignition Internal Combustion Engine Fueled with Gasolineand Operated Under Low-Temperature, Light-Duty Con-ditionsD6750 Test Methods for Evaluation of Engine Oils in aHigh-Speed, Single-Cylinder Dies
41、el Engine1K Proce-dure (0.4 % Fuel Sulfur) and 1N Procedure (0.04 % FuelSulfur)D6984 Test Method for Evaluation of Automotive EngineOils in the Sequence IIIF, Spark-Ignition EngineD7422 Test Method for Evaluation of Diesel Engine Oils inT-12 Exhaust Gas Recirculation Diesel EngineE29 Practice for Us
42、ing Significant Digits in Test Data toDetermine Conformance with SpecificationsE191 Specification for Apparatus For Microdeterminationof Carbon and Hydrogen in Organic and Organo-MetallicCompoundsE608/E608M Specification for Mineral-Insulated, Metal-Sheathed Base Metal ThermocouplesE1119 Specificati
43、on for Industrial Grade Ethylene GlycolIEEE/ASTM SI 10 Standard for Use of the InternationalSystem of Units (SI): The Modern Metric System32.2 Military Specification:5MIL-PRF-2104, Lubricating Oil, Internal Combustion En-gine, Tactical Service2.3 SAE Standards:6J183, Engine Oil Performance and Engin
44、e Service Classifi-cation (Other Than “Energy-Conserving”)J300, Engine Oil Viscosity Classification *HS-23/00J304, Engine Oil Tests2.4 Other ASTM Documents:Guidelines for Calibration73For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.
45、org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.4Withdrawn. The last approved version of this historical standard is referencedon www.astm.org.5Hardcopy available from Document Automation and Production Service,Building 4/D, 7
46、00 Robbins Avenue, Philadelphia, PA 19111-5094. Also, can bedownloaded from internet address: http:/assist2.daps.dla.mil/quicksearch/.6Available from Society of Automotive Engineers, 400 Commonwealth Dr.,Warrendale, PA 15096-0001. These standards are not available separately. Ordereither SAE Handboo
47、k, Vol. 3, or SAE Fuels and Lubricants Standards Manual,HS-23.7Guidelines for Calibration can be found in the Lubricant Test MonitoringSystem, available from the Test Monitoring Center, http :/www. astmtmc. cmu.edu/D7320 10a3The Lubricant Test Monitoring System, Sequence IIIG TestControl Chart Techn
48、ique for Developing and ApplyingSeverity Adjustments (SA)83. Terminology3.1 Definitions:3.1.1 blowby, nin internal combustion engines, that por-tion of the combustion products and unburned air/fuel mixturethat leaks past piston rings into the engine crankcase duringoperation.3.1.2 BTDC (before top d
49、ead center), nused with thedegree symbol to indicate the angular position of the crankshaftrelative to its position at the point of uppermost travel of thepiston in the cylinder. D41753.1.3 calibrate, vto determine the indication or output ofa device (e.g., thermometer, manometer, engine) with respectto that of a standard.3.1.4 clogging, nthe restriction of a flow path due to theaccumulation of material along the flow path boundaries.D41753.1.5 cold-stuck piston ring, nin internal combustionengines, a piston ring that is stuck when the piston and ring areat room tempe
