1、Designation:D661814Standard Test Method forEvaluation of Engine Oils in Diesel Four-Stroke CycleSupercharged 1M-PC Single Cylinder Oil Test Engine1This standard is issued under the fixed designation D6618;the number immediately following the designation indicates the year oforiginal adoption or,in t
2、he case of 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.INTRODUCTIONThis test method can be used by any properly equipped laboratory,without outside assistanc
3、e.However,theASTM Test Monitoring Center(TMC)2provides reference oils and an assessment of thetest results obtained on those oils by the laboratory.By this means,the laboratory will know whethertheir use of the test method gives results statistically similar to those obtained by other laboratories.F
4、urthermore,various agencies require that a laboratory utilize the TMC services in seekingqualification of oils against specifications.For example,the U.S.Army imposes such a requirement,in connection with several Army engine lubricating oil specifications.Accordingly,this test method is written for
5、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 Information Letters issued by the TMC.In addition,the TMC may issue supplementary
6、 memoranda related to the test method.1.Scope*1.1 This test method covers a four-stroke cycle dieselengine test procedure for evaluating engine oils for certainhigh-temperature performance characteristics,particularly ringsticking,ring and cylinder wear,and accumulation of pistondeposits.Such oils i
7、nclude both single viscosity SAE grade andmultiviscosity SAE grade oils used in diesel engines.It iscommonly known as the 1M-PC test(PC for Pre-Chamber)andis used in several API oil categories,notably the CF and CF-2and the military category described in MIL-PRF-2104(seeNote 1).NOTE1Companion test m
8、ethods used to evaluate other engine oilperformance characteristics for API oil categories CF and CF-2 arediscussed in SAE J304.The companion tests used by the military can befound in MIL-PRF-2104.1.2 The values stated in SI units are to be regarded asstandard.The values in parentheses are provided
9、for informa-tion only.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 practices and determine the applica-bility of regulatory limitations prior to
10、use.1.4 This test method is arranged as follows:TABLE OF CONTENTSScope1Reference Documents2Terminology3Summary of Test Method4Significance and Use5Apparatus6Test Engine6.1Engine Accessories6.2 6.14Engine Oil System6.15Cooling System6.16Fuel System6.17Intake Air System6.18Exhaust System6.19Blowby Met
11、er6.20Thermocouples6.21Parts6.22Instrumentation6.23Crankcase Paint6.24Reagents and Materials7Fuel7.11This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.B0.02 on Heavy Duty Engine Oils.T
12、he test engine sequenceswere originally developed in 1956 by ASTM Committee D02.Subsequently,theprocedures were published in an ASTM Special Technical Publication.Current edition approved May 1,2014.Published June 2014.Originallyapproved in 2000.Last previous edition approved in 2010 as D6618 10a.DO
13、I:10.1520/D6618-14.2ASTM Test Monitoring Center,6555 PennAvenue,Pittsburgh,PA15206-4489.The TMC issues Information Letters that supplement this test method.This editionincorporates revisions contained in all information letters through No.1301.*A Summary of Changes section appears at the end of this
14、 standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 Test Oil7.2Engine Coolant7.3Cleaning Materials7.4Safety8Preparation of Apparatus9Supplementary Service Information9.1General Engine Inspection9.2Intake Air System9.3Cooling System9.
15、4Engine Cooling System Cleaning9.5Instrumentation Calibration Requirements9.6Engine Crankcase Cleaning9.7Additional Oil Filter9.8Flushing Procedure Components9.9Flushing Procedures9.10Piston Cleaning Preparation9.11Cylinder Head9.12Fuel Nozzle9.13Measurement9.14Procedure10Engine Break-in10.1Pre-Test
16、 Preparations10.2Warm-up Procedure10.3Operating Conditions10.4Periodic Measurements10.5Engine Oil Level10.6Oil Addition Procedure10.7Cool-Down Procedure10.8Shutdowns10.9Fuel System10.10Brake Specific Oil Consumption(BSOC)Calculation10.11Inspection11Preparation11.1Inspection11.2Rater Training11.3Referee Ratings11.4Calibration of Test Method12Requirements12.1Reference Oils12.2Test Numbering12.3Definition of a Test12.4New Laboratories and New Test Stands12.5Frequency of Calibration Tests12.6Specifi
