ASTM-D7320 2012

$63.38

D7320-12 Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence IIIG, Spark-Ignition Engine

Published By	Publication Date	Number of Pages
ASTM	2012	50

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Category: ASTM

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Description

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.

1.1.1 Additionally, with nonmandatory supplemental requirements, a IIIGA Test (Mini Rotary Viscometer and Cold Cranking Simulator measurements), a IIIGVS Test (EOT viscosity increase measurement), or a IIIGB Test (phosphorous retention measurement) can be conducted. These supplemental test procedures are contained in Appendixes Appendix X1, Appendix X2, and Appendix X3, respectively.

Note 1Companion 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 Exception Where there is no direct SI equivalent such as screw threads, national pipe threads/diameters, and tubing size.

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 limitations prior to use. Specific warning statements are provided in 6.14.1.1 and 7.1.

1.4 This test method is arranged as follows:

Additional information

Apparatus	6
Engine Oil Quality Testing (100 h)	11.15
Status of Non-Reference Oil Tests Relative to Reference Oil Test	10.6
System Time Response	10.8.9
Reporting of Reference Oil Test Results	10.4
Blowby Flow Rate Determination	Annex A10
Exhaust Manifolds, Water-Cooled	9.41
Pressure	10.8.4
Drawings	6.2
Harmonic Balancer	9.19
Air-to-Fuel Ratio Determination	6.14
Ignition System	9.38
Preparation of Parts for Rating of Sticking, Deposits, and Plugging	12.3
Sequence IIIG Blueprint Listing	Annex A12
Significance and Use	5
Crankshaft End Play	9.17
Engine Oil-Cooling System	6.10
Accessory Drive Units	9.40
Torques for Miscellaneous Bolts, Studs, and Nuts	9.7.4.3
Cylinder Head Assembly	9.25
Engine Speed and Load Control	6.5
External Cooling System Cleaning	9.46
Fluid Condition Module components	Annex A13
Engine Oil Cooling System Schematic	Annex A15
Coolant Mixing Tank	6.8
Coolant Outlet Adapter	9.35
Condenser Cleaning	9.1
Data Acquisition and Control	10.8
Throttle Body	9.39
Oil Sample Valve	9.37
Main Bearings	9.14
Fuel System	6.11
Post-Test Camshaft and Lifter Wear Measurements	12.5
Sequence IIIG Test Set Points and Control States	Annex A7
Hydraulic Valve Lifters	9.28
Laboratory and Engine Test Stand Calibration	10.1
Sample Rate	10.8.1
Intake Manifold Cleaning	9.2
Sequence IIIGB Test Procedure	Appendix X3
Introduction
Engine Block Preparation	9.9
Measurement Resolution	10.8.8
Sequence IIIG Test Parts Replacement Guidelines	Annex A2
Scope	1
Report	14
General Information	9.7.1
Photographs of Test Parts	12.10
Calibration	10
Lifting of Assembled Engines	9.44
Special Parts	9.7.2
Dipstick and Hole Plug	11.1
Main Bearing Cap Installation	9.14.2
Testing Oil Samples for Wear Metals	12.7
Injector Flow Testing	6.14.1
Condenser	9.34
Connecting Rod Bearings	9.20
Blowby Flow Rate Measurement	11.11
Crankshaft Installation	9.14.1
Engine Oil Pump Priming	9.50
Determination of Operational Validity	12.13
Test Oil Sample Requirements	8
Speed	10.8.6
Sequence IIIG Engine Oil Level Worksheet	Annex A9
Induction Air Supply Humidity, Temperature, and Pressure	6.12
Test Termination	11.16
Reagents and Materials	7
Pressure Checking of Engine Coolant System	9.43
Temperature	10.8.3
Keywords	16
Exhaust and Exhaust Back Pressure Systems	6.15
Evaluation of Reference Oil Test Results	10.5
Pressure Measurement and Sensor Location	6.17
Engine Start-up and Shutdown Procedures	11.3
Sequence IIIGA Test Procedure	Appendix X1
Test Oil Charging	9.49
Cylinder Head Cleaning	9.6
Safety Hazards	Annex A11
Engine Block Cleaning	9.5
Status of Test Stands Used for Non-Standard Tests	10.7
Adjustment of Valve Spring Loads	9.26
Crankshaft Sprocket	9.15
Rocker Covers	9.32
Coolant Inlet Adapter	9.22
Engine Operating Procedure	11
Engine Front Cover	9.21
Engine and Condenser Coolant	7.2
Oil Consumption Computation	12.9
Severity Adjustments	12.12
Engine Coolant Jacket Cleaning (Flushing)	9.47
Test Engine	6.4
Load	10.8.7
Sealing and Anti-seize Compounds	7.6
Referenced Documents	2
Camshaft Installation	9.13
Quality Index	10.8.10
Parts Replacement	9.8
Non-Scheduled Shutdowns	11.6
Mounting the Engine on the Test Stand	9.45
Initial run (10 min)	11.14
Hardware Information	9.7.3
Oil Pan	9.24
Blowby Flow Rate Measurements	12.8
Testing of Reference Oils	10.2
Sequence IIIGVIS Test Procedure	Appendix X2
Engine Disassembly	12.2
Data Recording	11.13
Camshaft Sprocket and Timing Chain	9.16
Fluid Conditioning Module	6.6
Piston Installation	9.18.1
Pushrods	9.29
Sequence IIIG Quality Index Upper and Lower Values	Annex A8
Coolant Additive	7.3
Engine Parts	6.4.1
Test Fuel	7.1
Laboratory	6.1
Coolant Charging	9.48
Reference Oil Test Frequency	10.3
Intake Manifold	9.31
Oil Filter Adapter	9.36
Oil Dipstick Hole	9.23
Retention of Representative Test Parts	12.11
Engine Cooling System	6.6.1
Summary of Test Method	4
Specified Equipment	6.3
Sequence IIIG Determination Volume of Engine Oilin Pan	Annex A3
Cleaning of Engine Parts (other than the block and heads)	9.3
Temperature Measurement	6.13
Scheduled Shutdown	11.5
Coolant Preparation	7.4
Precision of Reported Units	14.2
Valve Train Loading	9.30
Flushing Tank	6.7
Piston Pin Installation	9.18
Piston Fitting and Numbering	9.10
Dipstick Hole O-ring	11.2
Oil Leveling	11.8
Pre-Test Camshaft and Lifter Measurements	9.11
Piston Deposit Rating	12.4
Connecting Rod Cleaning	9.4
Flow	10.8.5
Oil Sampling	11.7
Sequence IIIG Test Reporting	Annex A5
Report Forms	14.1
Condenser Cooling Systems	6.9
Engine Flywheel	9.42
Air-to-Fuel-Ratio Measurement and Control	11.9
Cylinder Head Bolts	9.7.4.2
Pre-Test Cleaning Materials	7.5
Precision and Bias	15
The Role of the ASTM Test Monitoring Center (TMC) and the Calibration Program	Annex A1
Main Bearing Cap Bolts	9.7.4.1
Preparation of Apparatus	9
Piston Ring Fitting	9.10.1
Camshaft Bearing Installation	9.12
Terminology	3
Cylinder Head Installation	9.27
NOx Determinations	11.12
Water Inlet Adapter	9.33
Sequence IIIG Test Air-to-Fuel Ratio Control Flow Chart	Annex A6
Fastener Torque Specifications and Torquing Procedures	9.7.4
Engine Build-up Procedure	9.7
Air-to-Fuel Ratio Verification	11.10
Viscosity Test	12.6
Thermocouple Location	6.13.1
Determination of Test Results	12
Start-up	11.4
Engine Build Worksheets	Annex A14
Sequence IIIG Test Fuel Analysis	Annex A4
Measurement Accuracy	10.8.2

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ASTM-D7320 2012

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