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ASTM International - ASTM D6709-21a

Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)

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Organization: ASTM International
Publication Date: 1 November 2021
Status: inactive
Page Count: 40
ICS Code (Lubricants, industrial oils and related products): 75.100
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... View More

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
Engine Operating Procedure 11
Run-In and Flush 11.1
Test Operating Conditions 11.2
Air-Fuel Ratio and Spark Advance 11.3
Air, Off-Gas and Blowby Measurement 11.4
Unscheduled Shutdowns 11.5
Oil Sampling and Oil Addition 11.6
Periodic Measurements 11.7
Final Oil Drain and Oil Consumption Computation 11.8
Operational Validity Criteria 11.9
Test Completion 11.10
Determination of Test Results 12
Oil Analysis 12.1
Test Bearing Weight Loss Determination 12.2
Report 13
Precision and Bias 14
Precision 14.1
Bias 14.2
Use of ASTM Rounding 15
Keywords 16
ANNEXES
ASTM Test Monitoring Center Organization Annex A1
ASTM Test Monitoring Center: Calibration Procedures Annex A2
ASTM Test Monitoring Center: Maintenance Activities Annex A3
ASTM Test Monitoring Center: Related Information Annex A4
Measurement of Connecting Rod Bearing Clearance and
Journal Taper
Annex A5
Measurement of Main Bearing Clearance Annex A6
Measurement of Piston-to-Sleeve Clearance Annex A7
Control Chart Technique for a Laboratory's Severity
Adjustment (SA)
Annex A8
Recommended New Liner Honing Procedure Annex A9
Sequence VIII Oil Priming Procedure Annex A10
Alternative Crankcase Breather Configuration Annex A11
Connecting Rod Bearing Cleaning Procedure Annex A12
Electronic Ignition Conversion Annex A13
System Response Procedure Annex A14
Air-Fuel Ratio Measurement Annex A15
Lead Decontamination Procedure Annex A16
Crankshaft Rear Seal Conditioning Annex A17
Report Forms and Data Dictionary Annex A18
Test Fuel Specification Annex A19
APPENDIXES
Suggested Method for Salvaging Camshaft Bearing Journals Appendix X1
Data Log Sheets Appendix X2

1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are provided throughout this test method.

1.6 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.

Document History

April 1, 2022
Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
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...
ASTM D6709-21a
November 1, 2021
Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
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...
May 1, 2021
Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
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...
October 1, 2015
Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
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...
April 1, 2015
Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
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...
December 1, 2014
Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
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...
May 1, 2014
Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
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...
May 1, 2013
Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
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...
May 1, 2011
Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
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...
November 1, 2010
Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
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...
May 1, 2010
Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
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...
October 1, 2009
Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
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...
April 15, 2009
Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
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...
October 15, 2008
Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
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...
November 1, 2007
Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
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...
May 1, 2006
Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
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...
November 1, 2005
Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
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...
November 1, 2004
Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
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...
November 1, 2003
Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
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...
May 10, 2003
Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
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...
August 10, 2001
Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
1.1 This test method is used to evaluate 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...
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