ASTM D6709-22
Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)

Standard No.

ASTM D6709-22

Release Date

2022

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D6709-23

Latest

ASTM D6709-24

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 sparkignition 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 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 April 1, 2022. Published April 2022. Originally approved in 2001. Last previous edition approved in 2021 as D6709 – 21a. DOI: 10.1520/D6709-22. 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. 21–2. *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 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. 1 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 Stay-in-Grade Oil Analysis Procedure 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.

ASTM D6709-22 Referenced Document

• ASTM D130 Standard Test Method for Detection of Copper Corrosion from Petroleum Products by the Copper Strip Tarnish Test
• ASTM D1319 Standard Test Method for Hydrocarbon Types in Liquid Petroleum Products by Fluorescent Indicator Adsorption
• ASTM D235 Standard Specification for Mineral Spirits (Petroleum Spirits) (Hydrocarbon Dry Cleaning Solvent)
• ASTM D240 Standard Test Method for Heat of Combustion of Liquid Hydrocarbon Fuels by Bomb Calorimeter
• ASTM D2422 Standard Classification of Industrial Fluid Lubricants by Viscosity System
• ASTM D2699 Standard Test Method for Research Octane Number of Spark-Ignition Engine Fuel
• ASTM D2700 Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel
• ASTM D323 Standard Test Method for Vapor Pressure of Petroleum Products (Reid Method)
• ASTM D3231 Standard Test Method for Phosphorus in Gasoline
• ASTM D3237 Standard Test Method for Lead In Gasoline By Atomic Absorption Spectroscopy
• ASTM D3343 Standard Test Method for Estimation of Hydrogen Content of Aviation Fuels
• ASTM D381 Standard Test Method for Existent Gum in Fuels by Jet Evaporation
• ASTM D4052 Standard Test Method for Density and Relative Density of Liquids by Digital Density Meter
• ASTM D4175 Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants*， 2023-07-01 Update
• ASTM D4294 Standard Test Method for Sulfur in Petroleum Products by Energy-Dispersive X-Ray Fluorescence Spectroscopy
• ASTM D445 Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (the Calculation of Dynamic Viscosity)
• ASTM D4485 Standard Specification for Performance of Active API Service Category Engine Oils*， 2022-09-01 Update
• ASTM D4815 Standard Test Method for Determination of MTBE, ETBE, TAME, DIPE, tertiary-Amyl Alcohol and C₁ to C₄ Alcohols in Gasoline by Gas Chromatography
• ASTM D525 Standard Test Method for Oxidation Stability of Gasoline (Induction Period Method)
• ASTM D7422 Standard Test Method for Evaluation of Diesel Engine Oils in T-12 Exhaust Gas Recirculation Diesel Engine*， 2023-12-01 Update
• ASTM D86 Standard Test Method for Distillation of Petroleum Products
• ASTM E191 Standard Specification for Apparatus For Microdetermination of Carbon and Hydrogen in Organic and Organo-Metallic Compounds
• ASTM E29 Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

ASTM D6709-22 history

• 2024 ASTM D6709-24 Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
• 2023 ASTM D6709-23 Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
• 2022 ASTM D6709-22 Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
• 2021 ASTM D6709-21a Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
• 2021 ASTM D6709-21 Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
• 2015 ASTM D6709-15a Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
• 2015 ASTM D6709-15 Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
• 2014 ASTM D6709-14a Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
• 2014 ASTM D6709-14 Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine 40;CLR Oil Test Engine41;
• 2013 ASTM D6709-13 Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
• 2011 ASTM D6709-11 Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
• 2010 ASTM D6709-10a Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
• 2010 ASTM D6709-10 Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
• 2009 ASTM D6709-09a Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
• 2009 ASTM D6709-09 Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
• 2008 ASTM D6709-08 Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
• 2007 ASTM D6709-07 Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
• 2006 ASTM D6709-06 Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
• 2005 ASTM D6709-05 Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
• 2004 ASTM D6709-04 Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
• 2003 ASTM D6709-03a Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
• 2003 ASTM D6709-03 Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
• 2001 ASTM D6709-01 Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)