ASTM D6709-24

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D6709 − 24
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 D6709; 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 is written for use by laboratories that utilize the portions of the test method that
2
refer to ASTM Test Monitoring Center (TMC) services (see Annex A1). Laboratories that choose not
to use the TMC services may simply disregard these portions.
The TMC provides reference oils, and engineering and statistical services to laboratories that desire
to produce test results that are statistically similar to those produced by laboratories previously
calibrated by the TMC.
In general, the Test Purchaser decides if a calibrated test stand is to be used. An organization such
as the American Chemistry Council require that a laboratory use the TMC services as part of their test
registration process. In addition, the American Petroleum Institute requires that a laboratory utilize the
TMC services in seeking qualification of oil against its specifications.
NOTE 1—The advantage of using the TMC services to calibrate test stands is that the test laboratory (and hence the
Test Purchaser) has an assurance that the test stand was operating at the proper level of test severity. It should also be
borne in mind that results obtained in a non calibrated test stand may not be the same as those obtained in a test stand
participating in the ASTM TMC services process.
1. Scope* 1.2 Correlation of test results with those obtained in auto-
motive service has not been established. Furthermore, the
1.1 This test method covers the evaluation of automotive
results obtained in this test are not necessarily indicative of
engine oils (SAE grades 0W, 5W, 10W, 20, 30, 40, and 50, and
results that will be obtained in a full-scale automotive spark-
multi-viscosity grades) intended for use in spark-ignition
ignition or compression-ignition engine, or in an engine
gasoline engines. The test procedure is conducted using a
operated under conditions different from those of the test. The
carbureted, spark-ignition Cooperative Lubrication Research
test can be used to compare one oil with another.
(CLR) Oil Test Engine (also referred to as the Sequence VIII
test engine in this test method) run on unleaded fuel. An oil is
1.3 The values stated in SI units are to be regarded as
evaluated for its ability to protect the engine and the oil from
standard. No other units of measurement are included in this
deterioration under high-temperature and severe service con-
standard.
ditions. The test method can also be used to evaluate the
1.3.1 Exceptions—The values stated in inch-pounds for
viscosity stability of multi-viscosity-graded oils. Companion
certain tube measurements, screw thread specifications, and
test methods used to evaluate engine oil performance for
sole source supply equipment are to be regarded as standard.
specification requirements are discussed in the latest revision
1.3.1.1 The bearing wear in the text is measured in grams
of Specification D4485.
and described as weight loss, a non-SI term.
1.4 This test method is arranged as follows:
1
This test method is under the jurisdiction of ASTM Committee D02 on
Subject Section
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of
Introduction
Subcommittee D02.B0.01 on Passenger Car Engine Oils.
Scope 1
Current edition approved March 1, 2024. Published March 2024. Originally Referenced Documents 2
approved in 2001. Last previous edition approved in 2023 as D6709 – 23. DOI: Terminology 3
Summary of Test Method 4
10.1520/D6709-24.
2
Before Test Starts 4.1
Until the next revision of this test method, the ASTM Test Monitoring Center
Power Section Installation 4.2
will update changes in this test method by means of Information Letters. Informa-
Engine Operation (Break-in) 4.3
tion Letters may be obtained from the ASTM Test Monitoring Center, 203
Engine Operation (Test/Samples) 4.4
Armstrong Drive, Freeport, PA 16229, Attention: Director, www.astmtmc.org. This
Stripped Viscosity 4.5
edition incorporates revisions in all Information Letters through No. 23–2.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
...