ASTM-D6709 2009

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D6709-09a Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)

Published By	Publication Date	Number of Pages
ASTM	2009	39

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Category: ASTM

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Description

ASTM D6709-09a

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

ASTM D6709

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 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.

1.4 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:

Keywords

bearing weight loss; CLR oil test engine; copper-lead bearings; engine oil; oil consumption; Sequence VIII test; shear stability; Automotive engine fuels/oils; Bearing weight loss; CLR (Cooperative Lubrication Research) test engine; Copper-lead bearings; Oil consumption; Sequence VIII test; Shear stability

ICS Code

ICS Number Code

DOI: 10.1520/D6709-09A

PDF Catalog

PDF Pages	PDF Title
1	Scope
2	Referenced Documents
3	Terminology TABLE 1
4	Summary of Test Method FIG. 1
5	Significance and Use Apparatus TABLE 2 FIG. 2
6	FIG. 3
7	FIG. 4
8	FIG. 5
9	FIG. 6 FIG. 7 FIG. 8
10	Reagents and Materials
11	Test Oil Sample Requirements Preparation of Apparatus
13	Calibration
14	Engine Operating Procedure TABLE 3
16	Determination of Test Results Report Precision and Bias Use of ASTM Rounding Keywords TABLE 4
17	A1. MEASUREMENT OF CONNECTING ROD BEARING CLEARANCE AND JOURNAL TAPER A1.1 A1.2 A1.3 A1.4 A1.5 A1.6 A1.7 A1.8 A1.9 FIG. A1.1 TABLE A1.1
18	A2. MEASUREMENT OF MAIN BEARING CLEARANCE A2.1 A2.2 A2.3 A2.4 A2.5 A2.6 A2.7 A2.8 A2.9 TABLE A1.2
19	A3. THE ASTM TEST MONITORING CENTER CALIBRATION PROGRAM A3.1 A3.2 A3.3 TABLE A2.1 FIG. A2.1
20	A3.4 A4. MEASUREMENT OF PISTON-TO-SLEEVE CLEARANCE A4.1 A4.2 A4.3 A4.4 A4.5 A4.6 A4.7 A4.8 A4.9 A4.10 A4.11 A4.12
21	FIG. A4.1 TABLE A4.1
22	A5. CONTROL CHART TECHNIQUE FOR A LABORATORY’S SEVERITY ADJUSTMENT (SA) A5.1 A6. NEW LINER HONING PROCEDURE A6.1 A6.2 A6.3 A6.4 A6.5 A6.6 A6.7 A6.8 FIG. A4.2
23	FIG. A6.1
24	A7. SEQUENCE VIII OIL PRIMING PROCEDURE A7.1 A7.2 A7.3 A7.4 A7.5 A7.6 FIG. A6.2 TABLE A6.1
25	A8. ALTERNATIVE CRANKCASE BREATHER CONFIGURATION A8.1 FIG. A8.1
26	A9. CONNECTING ROD BEARING CLEANING PROCEDURE A9.1 A9.2 A9.3 A9.4 A9.5 A9.6 A9.7 A9.8 A9.9 A9.10 A9.11 A9.12 A9.13 A10. SEQUENCE VIII ELECTRONIC IGNITION CONVERSION PROCEDURE A10.1 A10.2 A10.3 A10.4 A10.5 A10.6 A10.7 A10.8 A10.9 A10.10
27	A10.11 A10.12 A10.13 FIG. A10.1 FIG. A10.2
28	FIG. A10.3 FIG. A10.4
29	FIG. A10.5 FIG. A10.6
30	FIG. A10.7
31	FIG. A10.8 FIG. A10.9
32	A11. SYSTEM RESPONSE PROCEDURE A11.1 A11.2 A11.3 FIG. A10.10
33	A11.4 Speed A11.5 A12. AIR-FUEL RATIO MEASUREMENT A12.1 A13. LEAD DECONTAMINATION PARTS/PROCEDURE A13.1 A13.2 TABLE A12.1
34	A13.3 A14. STAY-IN-GRADE OIL ANALYSIS PROCEDURE A14.1 A15. CRANKSHAFT REAR SEAL CONDITIONING PROCEDURE A15.1 A16. REPORT FORMS AND DATA DICTIONARY A16.1
35	A17. TEST FUEL SPECIFICATION A17.1 X1. ROLE OF THE ASTM TEST MONITORING CENTER AND THE CALIBRATION PROGRAM X1.1 X1.2 TABLE A17.1
36	X1.3 X2. SUGGESTED METHOD FOR SALVAGING CAMSHAFT BEARING JOURNALS X2.1 X3. DATA LOG SHEETS X3.1
37	FIG. X3.1
38	FIG. X3.2

Additional information

Subject	Section
Sequence VIII Oil Priming Procedure	Annex A7
Test Oil Sample Requirements	8
Measurement of Piston-to-Sleeve Clearance	Annex A4
Report	14
Referenced Documents	2
Air-Fuel Ratio Measurement	Annex A12
Measurement of Connecting Rod Bearing Clearance and Journal Taper	Annex A1
Precision and Bias	15
Recommended New Liner Honing Procedure	Annex A6
Significance and Use	5
Electronic Ignition Conversion	Annex A10
Connecting Rod Bearing Cleaning Procedure	Annex A9
Scope	1
Introduction
Measurement of Main Bearing Clearance	Annex A2
The ASTM Test Monitoring Center Calibration Program	Annex A3
Crankshaft Rear Seal Conditioning	Annex A15
Data Log Sheets	Appendix X3
Calibration	10
Apparatus	6
Lead Decontamination Procedure	Annex A13
Use of ASTM Rounding	16
Preparation of Apparatus	9
Test Fuel Specification	Annex A17
Reagents and Materials	7
Terminology	3
Keywords	17
Suggested Method for Salvaging Camshaft Bearing Journals	Appendix X2
System Response Procedure	Annex A11
Stay-in-Grade Oil Analysis Procedure	Annex A14
Determination of Test Results	12
Alternative Crankcase Breather Configuration	Annex A8
Summary of Test Method	4
Control Chart Technique for a Laboratory's Severity Adjustment (SA)	Annex A5
Report Forms and Data Dictionary	Annex A16
Role of the ASTM Test Monitoring Center and the Calibration Program	Appendix X1
Engine Operating Procedure	11