ASTM_D_4485_-_15a.pdf

Designation:D448515aStandard Specification forPerformance of Active API Service Category Engine Oils1This standard is issued under the fixed designation D4485;the number immediately following the designation indicates the year oforiginal adoption or,in the 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.This standard has been approved for use by agencies of the U.S.Department of Defense.INTRODUCTIONThis specification covers all the currently active American Petroleum Institute(API)engine oilperformance categories that have been defined in accordance with theASTM consensus process.Thereare organizations with specifications not subject to the ASTM consensus process,such as theInternational Lubricant Standardization and Approval Committee(ILSAC),American PetroleumInstitute(API SM,SN Specifications),and the Association des Constructeurs Europeans dAutomobiles(ACEA).Certain of these specifications,which have been defined primarily by the useof current ASTM test methods,have also been included in the Appendixes for information.In the ASTM system,a specific API designation is assigned to each category.The system isopen-ended,that is,new designations are assigned for use with new categories as each new set of oilperformance characteristics are defined.Oil categories may be referenced by engine builders inmaking lubricant recommendations,and used by lubricant suppliers and customers in identifyingproducts for specific applications.Where applicable,candidate oil programs are conducted inaccordance with theAmerican Chemistry Council(ACC)PetroleumAdditives ProductApproval Codeof Practice.Other service categories not shown in this document have historically been used to describe engineoil performance(SA,SB,SC,SD,SE,SF,SG,SH and CA,CB,CC,CD,CD-II,CE,CF,CF-2,CF-4,CG-4)(see 3.1.2).SA is not included because it does not have specified engine performancerequirements.SH is not included because it was a category that could not be licensed for gasolineengine oil use in the API Service Symbol after Dec.2,2010.(NoteThe SH category has beenincluded in Appendix X8 as relevant information in combination with“C”categories.)The others arenot included because they are based on test methods for which engine parts,test fuel,or reference oils,or a combination thereof,are no longer available.Also,theASTM 5-Car and Sequence VI Proceduresare obsolete and have been deleted from the category Energy Conserving and Energy Conserving II(defined by Sequence VI).Information on excluded older categories and obsolete test requirementscan be found in SAE J183.1.Scope*1.1 This specification covers engine oils for light-duty andheavy-duty internal combustion engines used under a variety ofoperating conditions in automobiles,trucks,vans,buses,andoff-highway farm,industrial,and construction equipment.1.2 This specification is not intended to cover engine oilapplications such as outboard motors,snowmobiles,lawnmowers,motorcycles,railroad locomotives,or oceangoingvessels.1.3 This specification is based on engine test results thatgenerally have been correlated with results obtained on refer-ence oils in actual service engines operating with gasoline ordiesel fuel.As it pertains to the API SL engine oil category,itis based on engine test results that generally have beencorrelated with results obtained on reference oils run ingasoline engine Sequence Tests that defined engine oil catego-ries prior to 2000.It should be recognized that not all aspects1This specification is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.B0 on Automotive Lubricants.Current edition approved April 15,2015.Published May 2015.Originallyapproved in 1985.Last previous edition approved in 2015 as D4485 15.DOI:10.1520/D4485-15A.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 of engine oil performance are evaluated by the engine tests inthis specification.In addition,when assessing oil performance,it is desirable that the oil be evaluated under actual operatingconditions.1.4 This specification includes bench and chemical tests thathelp evaluate some aspects of engine oil performance notcovered by the engine tests in this specification.1.5 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.5.1 Exceptions:1.5.1.1 The roller follower shaft wear in Test Method D5966is in mils.1.5.1.2 The oil consumption in Test Method D6750 is ingrams per kilowatthour.NOTE1The kWh unit is deprecated.The preferred SI unit is the joule(J);1 kWh=3.6 MJ.1.5.1.3 The bearing wear in Test Method D6709 is in gramsand is described as weight loss,a non-SI term.1.5.1.4 Some of the appen