ASTM-D6984 2016

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D6984-16a Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence IIIF, Spark-Ignition Engine

Published By	Publication Date	Number of Pages
ASTM	2016	54

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Description

ASTM D6984-16a

Historical Standard: Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence IIIF, Spark-Ignition Engine

ASTM D6984

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 units are to be regarded as standard. No other units of measurement are included in this standard.

1.2.1 Exceptions—The values stated in inches for ring gap measurements are to be regarded as standard, and where there is no direct SI equivalent such as screw threads, National Pipe Threads/diameters, tubing size, or single source supply equipment specifications.

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:

Keywords

cam and lifter wear; deposits; engine oil; engine wear; high-temperature performance; oil consumption; oil thickening; oil viscosity; oxidation resistance; Sequence IIIF test; spark-ignition automotive engine; varnish; varnish deposition;

ICS Code

ICS Number Code 75.100 (Lubricants, industrial oils and related products)

DOI: 10.1520/D6984-16A

Additional information

Significance and Use	5
Air-to-Fuel Ratio Determination	6.14
Status of Test Stands Used for Non-Standard Tests	10.6
Blowby Flow Rate Determination	Annex A14
Sequence IIIF Blueprint Listing	Annex A16
Sequence IIIF Test Set Points and Control States	Annex A10
Sequence IIIF Fluid Conditioning Module	6.6
Dipstick and Hole Plug	11.1
Piston Fitting and Numbering	9.10
Main Bearings	9.14
Engine Disassembly	12.2
Sequence IIIF Quality Index Upper and Lower Values	Annex A11
Blowby Flow Rate Measurement	11.11
Throttle Body	9.39
Exhaust Manifolds, Water-Cooled	9.41
Coolant Additive	7.3
Cleaning of Engine Parts (other than the block and heads)	9.4
Intake Manifold Cleaning	9.3
Blowby Flow Rate Measurements	12.9
Air-to-Fuel Ratio Verification	11.10
Initial Run (10 min)	11.14
Parts Replacement	9.8
Coolant Preparation	7.4
Mass	10.7.7
Crankshaft Sprocket	9.15
Engine Flywheel	9.42
Special Parts	9.7.2
Cylinder Head Cleaning	9.6
Scheduled Shutdown	11.5
Flushing Tank	6.7
Injector Flow Testing	6.14.1
General Information	9.7.1
Fluid Conditioning Module Components	Annex A17
Condenser Cooling Systems	6.9
Coolant Charging	9.48
Fuel System	6.11
Apparatus	6
Engine Coolant Jacket Cleaning (Flushing)	9.47
Water Inlet Adapter	9.33
Annexes
Camshaft Installation	9.13
Engine Operating Procedure	11
Piston Deposit Ratings	12.4
Scope	1
Test Fuel	7.1
Calibration	10
Engine Oil Quality Testing (80 h)	11.15
ASTM Test Monitoring Center: Related Information	Annex A4
Pressure Checking of Engine Coolant System	9.43
Subject	Section
Guidelines For Hardware Subject To First In – First Out Criteria	Annex A19
Preparation of Parts for Rating of Sticking, Deposits, and Plugging	12.3
Report	13
Pressure	10.7.4
Harmonic Balancer	9.19
Cylinder Head Installation	9.27
Temperature	10.7.3
Sequence IIIF Test Report Forms and Data Dictionary	Annex A8
Connecting Rod Bearings	9.20
Engine Oil Pump Priming	9.50
Ignition System	9.38
Condenser	9.34
Engine Start-up and Shutdown Procedures	11.3
Reagents and Materials	7
Engine Speed and Torque Control	6.5
Oil Pan	9.24
Dipstick Hole O-ring	11.2
Keywords	15
Quality Index	10.7.10
Adjustment of Valve Spring Forces	9.26
Engine Front Cover	9.21
Measurement Resolution	10.7.8
External Oil Cooling System	9.36
Exhaust and Exhaust Back Pressure Systems	6.15
Mounting the Engine on the Test Stand	9.45
Air-to-Fuel-Ratio Measurement and Control	11.9
Piston Ring Fitting	9.10.1
Pre-Test Cleaning Materials	7.5
End-of Test Used Oil Sample Testing	12.6
NOx Determinations	11.12
Test Oil Sample Requirements	8
Crankshaft Installation	9.14.1
Coolant Inlet Adapter	9.22
Evaluation of Reference Oil Test Results	10.4
Testing of Reference Oils	10.2
Thermocouple Location	6.13.1
Coolant Mixing Tank	6.8
Sealing and Anti-seize Compounds	7.6
Cylinder Head Assembly	9.25
Referenced Documents	2
Determination of Operational Validity	12.14
Post-Test Camshaft and Lifter Wear Measurements	12.5
Pressure Measurement and Pressure Sensor Location	6.17
Engine Oil Cooling System Configuration	Annex A18
Photographs of Test Parts	12.11
Temperature Measurement	6.13
Speed	10.7.6
Camshaft Bearing Installation	9.12
Fastener Torque Specifications and Torquing Procedures	9.7.4
Piston Installation	9.18.1
Test Engine	6.4
Preparation of Apparatus	9
Hydraulic Valve Lifters	9.28
Induction Air Supply Humidity, Temperature, and Pressure	6.12
Deviations from Test Operational Limits	13.3
Reference Oil Test Frequency	10.3
Sequence IIIFVIS Test Procedure	Appendix X2
Testing Oil Samples for Wear Metals	12.8
Condenser Cleaning	9.1
Appendixes
Sequence IIIF Engine Oil Level Worksheet	Annex A12
Non-Scheduled Shutdowns	11.6
Measurement Accuracy	10.7.2
ASTM Test Monitoring Center: Maintenance Activities	Annex A3
Engine Oil-Cooling System	6.10
ASTM Test Monitoring Center: Calibration Procedures	Annex A2
Safety Precautions	Annex A15
Summary of Test Method	4
Crankshaft End Play	9.17
Pre-Test Camshaft and Lifter Measurements	9.11
Data Recording	11.13
Oil Sampling	11.7
Rocker Covers	9.32
Start-up	11.4
Camshaft Sprocket and Timing Chain	9.16
Accessory Drive Units	9.40
Terminology	3
ASTM Test Monitoring Center: Organization	Annex A1
Valve Train Loading	9.30
Test Oil Charging	9.49
Laboratory and Engine Test Stand Calibration	10.1
Oil Dipstick Hole	9.23
Oil Sample Valve	9.37
Status of Non-Reference Oil Tests Relative to Reference Oil Test	10.5
Oil Leveling	11.8
Laboratory	6.1
Test Termination	11.16
Sequence IIIF Determination Volume of Engine Oil in Pan	Annex A6
Sequence IIIFHD Test Procedure	Appendix X1
Engine Cooling System	6.6.1
System Time Response	10.7.9
Specified Equipment	6.3
External Cooling System Cleaning	9.46
Piston Pin Installation	9.18
Engine Block Cleaning	9.5
Engine Build-up Procedure	9.7
Severity Adjustments	12.13
Engine Block Preparation	9.9
Lifting of Assembled Engines	9.44
Drawings	6.2
Sequence IIIF Test Parts Replacement Guidelines	Annex A5
Sequence IIIF Test Air-to-Fuel Ratio Control Flow Chart	Annex A9
Engine Build Worksheets	Annex A13
Engine and Condenser Coolant	7.2
Hardware Information	9.7.3
Pushrods	9.29
Determination of Test Results	12
Oil Consumption Computation	12.10
Main Bearing Cap Installation	9.14.2
Data Acquisition and Control	10.7
Flow	10.7.5
Precision of Reported Units	13.4
Coolant Outlet Adapter	9.35
Engine Parts	6.4.1
Retention of Representative Test Parts	12.12
Intake Manifold	9.31
Precision and Bias	14
Report Forms	13.1
Viscosity Test	12.7
Sequence IIIF Test Fuel Analysis	Annex A7
Sample Rate	10.7.1