ASTM D6709-08

This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
An American National Standard
Designation:D6709–07 Designation: D 6709 – 08
Standard Test Method for
Evaluation of Automotive Engine Oils in the Sequence VIII
1
Spark-Ignition Engine (CLR Oil Test Engine)
This standard is issued under the fixed designation D 6709; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
This test method can be used by any properly equipped laboratory without outside assistance.
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However, the ASTM Test Monitoring Center (TMC) offers a very valuable service to the test
laboratory; the Center provides reference oils and an assessment of the test results obtained on those
oils by the laboratory (see Appendix X1). By this means, the laboratory will know whether their use
of the test method gives results statistically similar to those obtained by other laboratories.
Furthermore, various agencies require that a laboratory utilize the TMC services in seeking
qualification of oils against specifications. For example, the American Petroleum Institute (API)
imposes such a requirement, in connection with several engine 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 method
that refer to the TMC.
This test method may be modified by means of Information Letters issued by theTMC. In addition,
the TMC may issue supplementary memoranda related to the test method (see Annex A3).
1. Scope
1.1 This test method covers the evaluation of automotive engine oils (SAE grades 5W, 10W, 20, 30, 40, and 50, and
multiviscosity grades) intended for use in spark-ignition gasoline engines. The test procedure is conducted using a carbureted,
spark-ignition Cooperative Lubrication Research (CLR) Oil Test Engine (also referred to as the Sequence VIII test engine in this
test method) run on unleaded fuel. An oil is evaluated for its ability to protect the engine and the oil from deterioration under
high-temperature and severe service conditions. The test method can also be used to evaluate the viscosity stability of
multiviscosity-graded oils. Companion test methods used to evaluate engine oil performance for specification requirements are
discussed in the latest revision of Specification D 4485.
1.2 Correlation of test results with those obtained in automotive service has not been established. Furthermore, the results
obtained in this test are not necessarily indicative of results that will be obtained in a full-scale automotive spark-ignition or
compression-ignition engine, or in an engine operated under conditions different from those of the test. The test can be used to
compare one oil with another.
1.3 The values stated in SI units are to be regarded as standard, except for (1) volume which is given in the metric, but non-SI,
litre, (2) certain tube measurements which are given in inch-pound units, (3) cylinder bore and stroke in both SI and inch-pound
units (the inch-pound being the standard) and (4) piston displacement given in metric (non-SI) and inch-pound units (the
inch-pound being the standard). In respect to (3) and (4) the inch-pound units are shown first and the SI units in parentheses.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use. Specific precautionary statements are provided throughout this test method.
1.5 This test method is arranged as follows:
Subject Section
1
This test method is under the jurisdiction ofASTM Committee D02 on Petroleum Products and Lubricants and is the direct responsibility of Subcommittee D02.B0.01
on Passenger Car Engine Oils.
Current edition approved Nov. 1, 2007.Oct. 15, 2008. Published JanuaryNovember 2008. Originally approved in 2001. Last previous edition approved in 20062007 as
D 6709–067.
2
Untilthenextrevisionofthistestmethod,theASTMTestMonitoringCenterwillupdatechangesinthistestmethodbymeansofInformationLetters.InformationLetters
may be obtained from theASTM Test Monitoring Center, 6555 PennAvenue, Pittsburgh, PA15202-4489,Attention:Administrator. This edition incorporates r
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