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ASTM D6202 Standard Test Method for Automotive Engine Oils on the Fuel Economy of Passenger Cars and Light-Duty Trucks in the Sequence VIA Spark Ignition Engine

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ASTM D6202在系列VIA火花点火发动机客车和轻型卡车的燃料经济学中汽车发动机油的标准试验方法
ASTM D6202 Standard Test Method for Automotive Engine Oils on the Fuel Economy of Passenger Cars and Light-Duty Trucks in the Sequence VIA Spark Ignition Engine
ASTM D6202在系列VIA火花点火发动机客车和轻型卡车的燃料经济学中汽车发动机油的标准试验方法

1. Scope
1.1 This test method covers an engine test procedure for the measurement of the effects of automotive engine oils on the fuel economy of passenger cars and light-duty 3856 kg (8500 lb), or less, gross vehicle weight trucks. The tests are conducted using a specified 4.6-L spark-ignition engine on a dynamometer test stand. It applies to multiviscosity grade oils used in these applications. Companion test methods used to evaluate engine oil performance for specification requirements are discussed in the latest revision of Specification D4485.
1.2 The values stated in either SI units or other units shall be regarded separately as the standard. Within the text, the SI units are stated first with the other units shown in parentheses. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other, without combining values in any way.
1.3This 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.
1.4 This test method is arranged as follows:
Subject
Section
Introduction
 
Scope
1
Referenced Documents
2
Terminology
3
Summary of Test Method
4
Significance and Use
5
Apparatus
6
General
6.1
Test Engine Configuration
6.2
Laboratory Ambient Conditions
6.3
Engine Speed and Load Control
6.4
Engine Cooling System
6.5
External Oil System
6.6
Fuel System
6.7
Engine Intake Air Supply
6.8
Temperature Measurement
6.9
AFR Determination
6.10
Exhaust and Exhaust Back Pressure Systems
6.11
Pressure Measurement and Pressure Sensor Locations
6.12
Engine Hardware and Related Apparatus
6.13
Miscellaneous Apparatus Related to Engine Operation
6.14
Reagents and Materials
7
Engine Oil
7.1
Test Fuel
7.2
Engine Coolant
7.3
Cleaning Materials
7.4
Sealing Compounds
7.5
Preparation of Apparatus
8
Test Stand Preparation
8.2
Engine Preparation
9
Cleaning of Engine Parts
9.2
Engine Assembly Procedure
9.3
General Assembly Instructions
9.3.1
Bolt Torque Specifications
9.3.2
Sealing Compounds
9.3.3
New Parts Required for Each New Engine
9.3.4
Harmonic Balancer
9.3.5
Oil Pan
9.3.6
Intake Manifold
9.3.7
Camshaft Covers
9.3.8
Thermostat
9.3.9
Thermostat Housing
9.3.10
Coolant Inlet
9.3.11
Oil Filter Adapter
9.3.12
Dipstick Tube
9.3.13
Water Pump
9.3.14
Sensors, Switches, Valves, and Positioners
9.3.15
Ignition System
9.3.16
Fuel Injection System
9.3.17
Intake Air System
9.3.18
Engine Management System (Spark and Fuel Control)
9.3.19
Accessory Drive Units
9.3.20
Exhaust Manifolds
9.3.21
Engine Flywheel and Guards
9.3.22
Lifting of Assembled Engines
9.3.23
Engine Mounts
9.3.24
Calibration
10
BC Pre-Test Verification
10.1
Engine/Test Stand Calibration
10.2
Procedure
10.2.1
Reporting of Reference Results
10.2.2
Analysis of Reference Oils
10.2.3
Flush Effectiveness Demonstration
10.2.4
Instrument Calibration
10.3
Engine Load Measurement System
10.3.1
Fuel Flow Measurement System
10.3.2
Coolant Flow Measurement System
10.3.3
Thermocouple and Temperature Measurement System
10.3.4
Humidity Measurement System
10.3.5
Other Instrumentation
10.3.6
Test Procedure
11
Preparation for Initial Start-Up of New Engine
11.1
Initial Engine Start-Up
11.2
Coolant Flush
11.3
New Engine Break-In
11.4
Routine Test Operation
11.5
Start-Up and Shutdown Procedures
11.5.8
Flying Flush Oil Exchange Procedures
11.5.9
Test Operating Stages
11.5.10
Stabilization to Stage Conditions
11.5.11
Stabilized BSFC Measurement Cycle
11.5.12
Data Logging
11.5.13
BC Oil Flush Procedure for BC Oil Before Test Oil
11.5.14
BSFC Measurement of BC Oil Before Test Oil
11.5.15
Test Oil Flush Procedure
11.5.16
Test Oil Aging
11.5.17
BSFC Measurement of Aged Test Oil
11.5.18
BC Oil Flush Procedure for BC Oil After Test Oil
11.5.19
BSFC Measurement for BC Oil After Test Oil
11.5.20
General Test Data Logging Forms
11.5.21
Diagnostic Review Procedures
11.5.22
Determination of Test Results
12
Final Test Report
13
Validity Statement
13.1
Report Format
13.2
Precision, Validity, and Bias
14
Precision
14.1
Validity
14.2
Test Stand Calibration Status
14.2.1
Validity Interpretation of Deviant Operational Conditions
14.2.2
Keywords
15
 
 
ANNEXES
 
Role of ASTM Test Monitoring Center
Annex A1
Detailed Specifications and Drawings of Apparatus
Annex A2
Oil Heater Cerrobase Refill Procedure
Annex A3
Engine Part Number Listing
Annex A4
Flying Flush Checklists
Annex A5
Safety Precautions
Annex A6
Report Format
Annex A7
Control Chart Technique for Stand/Engine Severity Adjustment (SA)
Annex A8
Statistical Equations for Mean and Standard Deviation
Annex A9
Fuel Injector Evaluation
Annex A10
Pre-test Maintenance Checklist
Annex A11
 
 
APPENDIXES
 
Procurement of Test Materials
Appendix X1
Data Dictionary
Appendix X2
 
Index Terms
aged test oil; break-in; calibration oil; flying flush; fuel economy; pre-test verification; reference oil; Sequence VIA; spark-ignition automotive engine;
 
 
 
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