ASTM D6984-07
(Test Method)Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence IIIF, Spark-Ignition Engine
Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence IIIF, Spark-Ignition Engine
SIGNIFICANCE AND USE
This test method was developed to evaluate automotive engine oils for protection against oil thickening and engine wear during moderately high-speed, high-temperature service.
The increase in oil viscosity obtained in this test method indicates the tendency of an oil to thicken because of oxidation. In automotive service, such thickening can cause oil pump starvation and resultant catastrophic engine failures.
The deposit ratings for an oil indicate the tendency for the formation of deposits throughout the engine, including those that can cause sticking of the piston rings in their grooves. This can be involved in the loss of compression pressures in the engine.
The camshaft and lifter wear values obtained in this test method provide a measure of the anti-wear quality of an oil under conditions of high unit pressure mechanical contact.
The test method was developed to correlate with oils of known good and poor protection against oil thickening and engine wear. Specially formulated oils that produce less than desirable results with unleaded fuels were also used during the development of this test method.
The Sequence IIIF engine oil test has replaced the Sequence IIIE test and can be used in specifications and classifications of engine lubricating oils, such as:
5.6.1 Specification D 4485,
5.6.2 Military Specification MIL-PRF-2104, and
5.6.3 SAE Classification J183.
SCOPE
1.1 This test method covers an engine test procedure for evaluating automotive engine oils for certain high-temperature performance characteristics, including oil thickening, varnish deposition, oil consumption, as well as engine wear. Such oils include both single viscosity grade and multiviscosity grade oils that are used in both spark-ignition, gasoline-fueled engines, as well as in diesel engines.
Note 1—Companion test methods used to evaluate engine oil performance for specification requirements are discussed in SAE J304.
1.2 The values stated in SI or other units are to be regarded as the standard. The values given in parentheses are provided for information only.
1.3 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 requirements prior to use.
1.4 This test method is arranged as follows:SubjectSectionScope1Referenced Documents2Terminology3Summary of Test Method4Significance and Use5Apparatus6Laboratory6.1Drawings6.2Specified Equipment6.3Test Engine6.4Engine Parts6.4.1Engine Speed and Load Control6.5Sequence IIIF Fluid Conditioning Module6.6Engine Cooling System6.6.1Flushing Tank6.7Coolant Mixing Tank6.8Condenser Cooling Systems6.9Engine Oil-Cooling System6.10Fuel System6.11Induction Air Supply Humidity, Temperature, and Pressure6.12Temperature Measurement6.13Thermocouple Location6.13.1Air-to-Fuel Ratio Determination6.14Injector Flow Testing6.14.1Exhaust and Exhaust Back Pressure Systems6.15Blowby Flow Rate Measurement6.16Pressure Measurement and Sensor Location6.17Reagents and Materials7Test Fuel7.1Engine and Condenser Coolant7.2Coolant Additive7.3Coolant Preparation7.4Pre-Test Cleaning Materials7.5Sealing and Anti-seize Compounds7.6Test Oil Sample Requirements8Preparation of Apparatus9Condenser Cleaning9.1Intake Manifold Cleaning9.3Cleaning of Engine Parts (other than the block and heads)9.4Engine Block Cleaning9.5Cylinder Head Cleaning9.6Engine Build-up Procedure9.7General Information9.7.1Special Parts9.7.2Hardware Information9.7.3Fastener Torque Specifications and Torquing Procedures9.7.4Parts Replacement9.8Engine Block Preparation9.9Piston Fitting and Numbering9.10Piston Ring Fitting9.10.1Pre-Test Camshaft and Lifter Measurements9.11Camshaft Bearing Installation9.12Camshaft Installation9.13Main Bearings9.14Crankshaft Installation9.14.1Main Bearing Cap Installation9.14.2Crankshaft Sprocket9.15C...
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
An American National Standard
Designation: D 6984 – 07
Standard Test Method for
Evaluation of Automotive Engine Oils in the Sequence IIIF,
1
Spark-Ignition Engine
This standard is issued under the fixed designation D 6984; 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 (e) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
This test method described can be used by any properly equipped laboratory; it does not require the
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assistance of anyone outside that laboratory. However, the ASTM Test Monitoring Center (TMC)
provides reference oils and an assessment of the test results obtained on those oils by the laboratory
(seeAnnexA1). By these means, the laboratory will know whether their use of the test method gives
results statistically similar to those obtained by other laboratories. Furthermore, various agencies
requirethatalaboratoryutilizetheTMCservicesinseekingqualificationofoilsagainstspecifications.
For example, the U.S. Army imposes such a requirement in connection with several Army engine
lubricating oil specifications.
Accordingly, this test method is written for use by laboratories that utilize the TMC services.
Laboratories that choose not to use those services may simply ignore those portions of the test method
that refer to the TMC.
This test method may be modified by means of Information Letters issued by theTMC. In addition,
the TMC may issue supplementary memoranda related to the test method (see A1.8).
1. Scope priate safety and health practices and determine the applica-
bility of regulatory requirements prior to use.
1.1 This test method covers an engine test procedure for
1.4 This test method is arranged as follows:
evaluating automotive engine oils for certain high-temperature
Subject Section
performance characteristics, including oil thickening, varnish
Scope 1
deposition, oil consumption, as well as engine wear. Such oils
Referenced Documents 2
include both single viscosity grade and multiviscosity grade
Terminology 3
Summary of Test Method 4
oils that are used in both spark-ignition, gasoline-fueled
Significance and Use 5
engines, as well as in diesel engines.
Apparatus 6
Laboratory 6.1
NOTE 1—Companion test methods used to evaluate engine oil perfor-
Drawings 6.2
mance for specification requirements are discussed in SAE J304.
Specified Equipment 6.3
Test Engine 6.4
1.2 The values stated in SI or other units are to be regarded
Engine Parts 6.4.1
as the standard. The values given in parentheses are provided
Engine Speed and Load Control 6.5
Sequence IIIF Fluid Conditioning Module 6.6
for information only.
Engine Cooling System 6.6.1
1.3 This standard does not purport to address all of the
Flushing Tank 6.7
safety concerns, if any, associated with its use. It is the
Coolant Mixing Tank 6.8
Condenser Cooling Systems 6.9
responsibility of the user of this standard to establish appro-
Engine Oil-Cooling System 6.10
Fuel System 6.11
Induction Air Supply Humidity, Temperature, and Pressure 6.12
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This test method is under the jurisdiction of ASTM Committee D02 on
Temperature Measurement 6.13
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
Thermocouple Location 6.13.1
D02.B0.01 on Passenger Car Engine Oils. Air-to-Fuel Ratio Determination 6.14
Current edition approved May 1, 2007. Published May 2007. Originally Injector Flow Testing 6.14.1
Exhaust and Exhaust Back Pressure Systems 6.15
approved in 2003. Last previous edition approved in 2006 as D 6984–06a.
2
Blowby Flow Rate Measurement 6.16
Until the next revision of this test method, the ASTM Test Monitoring Center
Pressure Measurement and Sensor Location 6.17
will update changes in the test method by means of information letters. Information
Reagents and Materials 7
lettersmaybeobtainedfromtheASTMTestMonitoringCenter,6555PennAvenue,
Test Fuel 7.1
Pittsburgh, PA 15206-4489. Attention: Administrator. www.astmtmc.cmu.edu. This
Engine and Condenser Coolant 7.2
edition incorporates revisions contained in all information letters through 06–3.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D6984–07
Subject Section Subject Section
Coolant Additive 7.3 Pressure 10.8.4
Coolant Preparation 7.4 Flow 10.8.5
Pre-Test Cleaning Materials 7.5 Speed 10.8.6
Sealing and Anti-seize Compounds 7.6 Load 10.8.7
Test Oil Sample Requirements 8 Measurement Resolution 10.8.8
Preparation of Apparatus 9 System Time Response 10.8.9
Condenser Cleaning 9.1 Quality Index 10.8.10
Intake Manifold Cleaning 9.3 Engine Operating Procedure 11
Cleaning of Eng
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