ASTM D6709-24
(Test Method)Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
SIGNIFICANCE AND USE
5.1 This test method is used to evaluate automotive engine oils for protection of engines against bearing weight loss.
5.2 This test method is also used to evaluate the SIG capabilities of multiviscosity-graded oils.
5.3 Correlation of test results with those obtained in automotive service has not been established.
5.4 Use—The Sequence VIII test method is useful for engine oil specification acceptance. It is used in specifications and classifications of engine lubricating oils, such as the following:
5.4.1 Specification D4485.
5.4.2 API Publication 1509 Engine Oil Licensing and Certification System.7
5.4.3 SAE Classification J304.
SCOPE
1.1 This test method covers the evaluation of automotive engine oils (SAE grades 0W, 5W, 10W, 20, 30, 40, and 50, and multi-viscosity 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 multi-viscosity-graded oils. Companion test methods used to evaluate engine oil performance for specification requirements are discussed in the latest revision of Specification D4485.
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. No other units of measurement are included in this standard.
1.3.1 Exceptions—The values stated in inch-pounds for certain tube measurements, screw thread specifications, and sole source supply equipment are to be regarded as standard.
1.3.1.1 The bearing wear in the text is measured in grams and described as weight loss, a non-SI term.
1.4 This test method is arranged as follows:
Subject
Section
Introduction
Scope
1
Referenced Documents
2
Terminology
3
Summary of Test Method
4
Before Test Starts
4.1
Power Section Installation
4.2
Engine Operation (Break-in)
4.3
Engine Operation (Test/Samples)
4.4
Stripped Viscosity
4.5
Test Completion (BWL)
4.6
Significance and Use
5
Evaluation of Automotive oils
5.1
Stay in Grade Capabilities
5.2
Correlation of Results
5.3
Use
5.4
Apparatus
6
Test Engineering, Inc.
6.1
Fabricated or Specially Prepared Items
6.2
Instruments and Controls
6.3
Procurement of Parts
6.4
Reagents and Materials
7
Reagents
7.1
Cleaning Materials
7.2
Expendable Power Section-Related Items
7.3
Power Section Coolant
7.4
Reference Oils
7.5
Test Fuel
7.6
Test Oil Sample Requirements
8
Selection
8.1
Inspection
8.2
Quantity
8.3
Preparation of Apparatus
9
Test Stand Preparation
9.1
Conditioning Test Run on Power Section
9.2
General Power Section Rebuild Instructions
9.3
Reconditioning of Power Section After Each Test
9.4
Calibration
10
Power Section and Test Stand Calibration
10.1
Instrumentation Calibration
10.2
Calibration of AFR Measurement Equipment
10.3
Calibration of Torque Wrenches
10.4
Engin...
General Information
Relations
Buy Standard
Standards Content (Sample)
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
...
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. 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.
Designation: D6709 − 23 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*
1.1 This test method covers the evaluation of automotive engine oils (SAE grades 0W, 5W, 10W, 20, 30, 40, and 50, and
multi-viscosity 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
multi-viscosity-graded oils. Companion test methods used to evaluate engine oil performance for specification requirements are
discussed in the latest revision of Specification D4485.
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
This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of Subcommittee
D02.B0.01 on Passenger Car Engine Oils.
Current edition approved Dec. 1, 2023March 1, 2024. Published January 2024March 2024. Originally approved in 2001. Last previous edition approved in 20222023 as
D6709 – 22.D6709 – 23. DOI: 10.1520/D6709-23.10.1520/D6709-24.
2
Until the next revision of this test method, the ASTM Test Monitoring Center will update changes in this test method by means of Information Letters. Information Letters
may be obtained from the ASTM Test Monitoring Center, 203 Armstrong Drive, Freeport, PA 16229, Attention: Director, www.astmtmc.org. This edition incorporates
revisions in all Information Letters through No. 23–1.23–2.
*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
1
---------------------- Page: 1 ----------------------
D6709 − 24
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3.1 Exceptions—The values stated in inch-pounds for certain tube measurements, screw thread specifications, and sole source
supply equipment are to be regarded as standard.
1.3.1.1 The bearing wear in the text is measured in grams and described as weight loss, a non-SI term.
1.4 This test method is arrang
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.