1、Designation: D7320 16aD7320 17Standard 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
2、revision, 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.INTRODUCTIONPortions of this test method are written for use by laboratories that make use of ASTM TestMonit
3、oring Center (TMC)2 services (see Annex A1 Annex A4).The TMC provides reference oils, and engineering and statistical services to laboratories that desireto produce test results that are statistically similar to those produced by laboratories previouslycalibrated by the TMC.In general, the Test Purc
4、haser decides if a calibrated test stand is to be used. Organizations such astheAmerican Chemistry Council require that a laboratory utilize the TMC services as part of their testregistration process. In addition, the American Petroleum Institute and the Gear Lubricant ReviewCommittee of the Lubrica
5、nt Review Institute (SAE International) require that a laboratory use theTMC services in seeking qualification of oils against their specifications.The advantage of using the TMC services to calibrate test stands is that the test laboratory (andhence the Test Purchaser) has an assurance that the tes
6、t stand was operating at the proper level of testseverity. It should also be borne in mind that results obtained in a non-calibrated test stand may notbe the same as those obtained in a test stand participating in the ASTM TMC services process.Laboratories that choose not to use the TMC services may
7、 simply disregard these portions.1. Scope*1.1 This test method covers an engine test procedure for evaluating automotive engine oils for certain high-temperatureperformance characteristics, including oil thickening, varnish deposition, oil consumption, as well as engine wear. Such oilsinclude both s
8、ingle viscosity grade and multiviscosity grade oils that are used in both spark-ignition, gasoline-fueled engines, aswell as in diesel engines.1.1.1 Additionally, with nonmandatory supplemental requirements, a IIIGA Test (Mini Rotary Viscometer and Cold CrankingSimulator measurements), a IIIGVS Test
9、 (EOT viscosity increase measurement), or a IIIGB Test (phosphorous retentionmeasurement) can be conducted. These supplemental test procedures are contained in Appendixes Appendix X1, Appendix X2,and Appendix X3, respectively.NOTE 1Companion test methods used to evaluate engine oil performance for s
10、pecification requirements are discussed in SAE J304.1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.2.1 ExceptionWhere there is no direct SI equivalent such as screw threads, national pipe threads/diameters, and tubing s
11、ize.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use. Specific war
12、ning statements are provided in 6.14.1.1 and 7.1.1.4 This test method is arranged as follows:SectionIntroduction1 This test method is under the jurisdiction ofASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of SubcommitteeD02.B0.01 on Passenger
13、 Car Engine Oils.Current edition approved Oct. 1, 2016May 1, 2017. Published October 2016May 2017. Originally approved in 2006. Last previous edition approved in 2016 as D7320 16.16a. DOI: 10.1520/D7320-16A.10.1520/D7320-17.2 Until the next revision of this test method, the ASTM Test Monitoring Cent
14、er will update changes in the test method by means of information letters. Information lettersmay be obtained from the ASTM Test Monitoring Center, 6555 Penn Avenue, Pittsburgh, PA 15206-4489. Attention: Administrator. This edition incorporates revisions in allinformation letters through No. 161.16-
15、2.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior e
16、ditions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2
17、959. United States1SectionScope 1Referenced Documents 2Terminology 3Summary of Test Methods 4Significance and Use 5Apparatus 6Laboratory 6.1Drawings 6.2Specified Equipment 6.3Test Engine 6.4Engine Parts 6.4.1Engine Speed and Load Control 6.5Fluid Conditioning Module 6.6Engine Cooling System 6.6.1Flu
18、shing 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 Measurement 6.13Thermocouple Location 6.13.1Air-to-Fuel Ratio Determination 6.14Injector Flow Testing 6.14.1Exhaust
19、 and Exhaust Back Pressure Systems 6.15Blowby Flow Rate Measurement 6.16Pressure Measurement and Pressure Sensor Location 6.17Reagents and Materials 7Test Fuel 7.1Engine and Condenser Coolant 7.2Coolant Additive 7.3Coolant Preparation 7.4Pre-Test Cleaning Materials 7.5Sealing and Anti-seize Compound
20、s 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 Cleaning 9.4Engine Block Cleaning 9.5Cylinder Head Cleaning 9.6Engine Build-up Procedure 9.7General Information 9
21、.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 Bolts, Studs, and Nuts 9.7.4.3Parts Replacement 9.8Engine Block Preparation 9.9Piston Fitting and Numbering
22、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 Bearing Cap Installation 9.14.2Crankshaft Sprocket 9.15Camshaft Sprocket, and Timing Chain 9.16Crankshaft End P
23、lay 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 9.24Cylinder Head Assembly 9.25Adjustment of Valve Spring Loads 9.26Cylinder Head Installation 9.27Hydraulic
24、Valve Lifters 9.28Pushrods 9.29Valve Train Loading 9.30D7320 172SectionIntake Manifold 9.31Rocker Covers 9.32Water Inlet Adapter 9.33Condenser 9.34Coolant Outlet Adapter 9.35External Oil Cooling System 9.36Oil Sample Valve 9.37Ignition System 9.38Throttle Body 9.39Accessory Drive Units 9.40Exhaust M
25、anifolds, Water-Cooled 9.41Engine Flywheel 9.42Pressure 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 Coolant Jacket Cleaning (Flushing) 9.47Coolant Charging 9.48Test Oil Charging 9.49Engin
26、e Oil Pump Priming 9.50Calibration 10Laboratory and Engine Test Stand Calibration 10.1Testing of Reference Oils 10.2Reference Oil Test Frequency 10.3Evaluation of Reference Oil Test Results 10.4Status of Non-Reference Oil Tests Relative to ReferenceOil Test10.5Status of Test Stands Used for Non-Stan
27、dard Tests 10.6Data Acquisition and Control 10.7Sample Rate 10.7.1Measurement Accuracy 10.7.2Temperature 10.7.3Pressure 10.7.4Flow 10.7.5Speed 10.7.6Load 10.7.7Measurement Resolution 10.7.8System Time Response 10.7.9Quality Index 10.7.10Engine Operating Procedure 11Dipstick and Hole Plug 11.1Dipstic
28、k 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-Fuel-Ratio Measurement and Control 11.9Air-to-Fuel Ratio Verification 11.10Blowby Flow Rate Measurement 11.11NOx Determinations 11.12
29、Data Recording 11.13Initial run (10 min) 11.14Engine Oil Quality Testing (100 h) 11.15Test Termination 11.16Determination of Test Results 12Engine Disassembly 12.2Preparation of Parts for Rating of Sticking, Deposits,and Plugging12.3Piston Deposit Rating 12.4Post-Test Camshaft and Lifter Wear Measur
30、ements 12.5Viscosity Test 12.6Testing Oil Samples for Wear Metals 12.7Blowby Flow Rate Measurements 12.8Oil Consumption Computation 12.9Photographs of Test Parts 12.10Retention of Representative Test Parts 12.11Severity Adjustments 12.12Determination of Operational Validity 12.13Report 13Report Form
31、s 13.1Precision of Reported Units 13.4Precision and Bias 14Keywords 15ASTM Test Monitoring Center: Organization Annex A1ASTM Test Monitoring Center: Calibration Procedures Annex A2D7320 173SectionASTM Test Monitoring Center: Maintenance Activities Annex A3ASTM Test Monitoring Center: Related Informa
32、tion Annex A4Sequence IIIG Test Parts Replacement Guidelines Annex A5Sequence IIIG Determination Volume of Engine Oil in Pan Annex A6Sequence IIIG Test Fuel Analysis Annex A7Sequence IIIG Test Report Forms and Data Dictionary Annex A8Sequence IIIG Test Air-to-Fuel Ratio Control Flow Chart Annex A9Se
33、quence IIIG Test Set Points and Control States Annex A10Sequence IIIG Quality Index Upper and Lower Values Annex A11Sequence IIIG Engine Oil Level Worksheet Annex A12Blowby Flow Rate Determination Annex A13Safety Hazards Annex A14Sequence IIIG Blueprint Listing Annex A15Fluid Condition Module Compon
34、ents Annex A16Engine Build Worksheets Annex A17Engine Oil Cooling System Schematic Annex A18Guidelines For Hardware Subject To First In First OutCriteriaAnnex A19Sequence IIIGA Test Procedure Appendix X1Sequence IIIGVIS Test Procedure Appendix X2Sequence IIIGB Test Procedure Appendix X31.5 This inte
35、rnational standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Com
36、mittee.2. Referenced Documents2.1 ASTM Standards:3D86 Test Method for Distillation of Petroleum Products and Liquid Fuels at Atmospheric PressureD130 Test Method for Corrosiveness to Copper from Petroleum Products by Copper Strip TestD235 Specification for Mineral Spirits (Petroleum Spirits) (Hydroc
37、arbon Dry Cleaning Solvent)D240 Test Method for Heat of Combustion of Liquid Hydrocarbon Fuels by Bomb CalorimeterD323 Test Method for Vapor Pressure of Petroleum Products (Reid Method)D381 Test Method for Gum Content in Fuels by Jet EvaporationD445 Test Method for Kinematic Viscosity of Transparent
38、 and Opaque Liquids (and Calculation of Dynamic Viscosity)D525 Test Method for Oxidation Stability of Gasoline (Induction Period Method)D1319 Test Method for Hydrocarbon Types in Liquid Petroleum Products by Fluorescent Indicator AdsorptionD2699 Test Method for Research Octane Number of Spark-Igniti
39、on 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 Absorption SpectroscopyD3244 Practice for Utilization of Test Data to Determine Conformance with SpecificationsD3338 Test
40、Method for Estimation of Net Heat of Combustion of Aviation FuelsD3343 Test Method for Estimation of Hydrogen Content of Aviation FuelsD4052 Test Method for Density, Relative Density, and API Gravity of Liquids by Digital Density MeterD4175 Terminology Relating to Petroleum Products, Liquid Fuels, a
41、nd LubricantsD4485 Specification for Performance of Active API Service Category Engine OilsD4684 Test Method for Determination of Yield Stress and Apparent Viscosity of Engine Oils at Low TemperatureD4815 Test Method for Determination of MTBE, ETBE, TAME, DIPE, tertiary-Amyl Alcohol and C1 to C4 Alc
42、ohols inGasoline by Gas ChromatographyD5185 Test Method for Multielement Determination of Used and Unused Lubricating Oils and Base Oils by InductivelyCoupled Plasma Atomic Emission Spectrometry (ICP-AES)D5191 Test Method for Vapor Pressure of Petroleum Products (Mini Method)D5293 Test Method for Ap
43、parent Viscosity of Engine Oils and Base Stocks Between 10 C and 35 C Using Cold-CrankingSimulatorD5452 Test Method for Particulate Contamination in Aviation Fuels by Laboratory FiltrationD5453 Test Method for Determination of Total Sulfur in Light Hydrocarbons, Spark Ignition Engine Fuel, Diesel En
44、gine Fuel,and Engine Oil by Ultraviolet Fluorescence3 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.D7320 174
45、D5862 Test Method for Evaluation of Engine Oils inTwo-Stroke CycleTurbo-Supercharged 6V92TADiesel Engine (Withdrawn2009)4D6593 Test Method for Evaluation of Automotive Engine Oils for Inhibition of Deposit Formation in a Spark-Ignition InternalCombustion Engine Fueled with Gasoline and Operated Unde
46、r Low-Temperature, Light-Duty ConditionsD6750 Test Methods for Evaluation of Engine Oils in a High-Speed, Single-Cylinder Diesel Engine1K Procedure (0.4 % FuelSulfur) and 1N Procedure (0.04 % Fuel Sulfur)D6984 Test Method for Evaluation of Automotive Engine Oils in the Sequence IIIF, Spark-Ignition
47、EngineD7422 Test Method for Evaluation of Diesel Engine Oils in T-12 Exhaust Gas Recirculation Diesel EngineE29 Practice for Using Significant Digits in Test Data to Determine Conformance with SpecificationsE191 Specification forApparatus For Microdetermination of Carbon and Hydrogen in Organic and
48、Organo-Metallic CompoundsE608/E608M Specification for Mineral-Insulated, Metal-Sheathed Base Metal ThermocouplesE1119 Specification for Industrial Grade Ethylene GlycolIEEE/ASTM SI 10 Standard for Use of the International System of Units (SI): The Modern Metric System32.2 Military Specification:5MIL
49、-PRF-2104, Lubricating Oil, Internal Combustion Engine, Tactical Service2.3 SAE Standards:6J183, Engine Oil Performance and Engine Service Classification (Other Than “Energy-Conserving”)J300, Engine Oil Viscosity Classification *HS-23/00J304, Engine Oil Tests2.4 Other ASTM Documents:Guidelines for Calibration7The Lubricant Test Monitoring System, Sequence IIIG Test Control Chart Technique for Developing and Applying SeverityAdjustments (SA)8ASTM Deposit Rating Manual 20 (Formerly CRC Manual 20) 93. Terminology3.1 Definitions:3.1.1 blowby, nin internal combustion en
