ASTM-D6837 2002

$67.71

D6837-02 Standard Test Method for Measurement of the Effects of Automotive Engine Oils on the Fuel Economy of Passenger Cars and Light-Duty Trucks in the Sequence VIB Spark Ignition Engine

Published By	Publication Date	Number of Pages
ASTM	2002	3

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Categories: 43.060.40 - Fuel systems, ASTM

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Description

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.

1.2 This test method also provides for the running of an abbreviated length test that is referred to as the VIBSJ. The procedure for VIBSJ is identical to the Sequence VIB with the exception of the items specifically listed in Annex A13. The procedure modifications listed in refer to the corresponding section of the Sequence VIB test method.

1.3 The unit values stated in this test method shall be regarded as the standard. Values given in parentheses are provided for information purposes only. SI units are considered the primary units for this test method. The only exception is where there is no direct SI equivalent such as screw threads, national pipe threads/diameters, tubing size, and so forth.

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.

1.4 This test method is arranged as follows:

Additional information

Ignition System	9.3.16
New Engine Break-In	11.4
Reporting of Reference Results	10.1.2
Intake Manifold Vacuum/Absolute Pressure	6.12.7
EGR Block-Off Plate	6.13.7
Wiring Harnesses	6.13.6
Start-Up and Shutdown Procedures	11.5.8
Harmonic Balancer	9.3.5
Engine Mounts	9.3.24
Fuel Filtering	6.7.6
Significance and Use	5
Analysis of Reference/Calibration Oils	10.1.3
Accessory Drive Units	9.3.20
Introduction
Fuel System	6.7
BSFC Measurement of Aged (Phase II) Test Oil	11.5.21
Fuel Temperature and Pressure Control to Engine Fuel Rail	6.7.4
Detailed Specifications and Drawings of Apparatus	Annex A2
Calibration	10
Oil Charge for Coolant Flush	11.1.4
Intake Air	6.12.6
Annexes
FEI1 and FEI2 Calculations	12.1
Thermostat Housing	9.3.10
Engine Preparation	9
Engine Intake Air Supply	6.8
Intake Air Pressure Relief	6.8.3
Oil Consumption and Sampling	11.5.20
Fuel Injection System	9.3.17
Routine Test Operation	11.5
Intake Air Humidity	6.8.1
Oil Sump Full Level Determination Consumption Measurement Calibration Procedure	Annex A9
Procedure	10.1.1
Apparatus	6
Coolant Inlet	9.3.11
Humidity Measurement System	10.2.5
Stabilized BSFC Measurement Cycle	11.5.12
Engine Oil	7.1
Coolant Flow Differential Pressure	6.12.8
Lifting of Assembled Engines	9.3.23
Procurement of Test Materials	Appendix X1
Cleaning Materials	7.4
Miscellaneous Apparatus Related to Engine Operation	6.14
Thermostat	9.3.9
Fuel Flow Measurement System	10.2.2
Initial Engine Start-up	11.2
Subject	Section
Camshaft Covers	9.3.8
Engine Management System (Spark and Fuel Control)	9.3.19
Final Test Report	13
Scope	1
Oil Heater Cerrobase Refill Procedure	Annex A3
Test Procedure	11
Aging Phase II	11.5.19
Laboratory Ambient Conditions	6.3
Crankcase Pressure	6.12.9
Role of ASTM TMC	Annex A1
General	6.1
External Oil System	11.1.1
Bias	14.3
BC Oil Flush Procedure for BC Oil Before Test Oil	11.5.14
Reagents and Materials	7
Preparation for Oil Charge	11.1.3
Fuel Injector Evaluation	Annex A10
Blow-by Ventilation System Requirements
Exhaust and Exhaust Back Pressure Systems	6.11
BSFC Measurement of BC Oil Before Test Oil	11.5.15
Fuel Temperature and Pressure Control to the Fuel Flow Meter	6.7.3
Exhaust Back Pressure	6.12.5
Bolt Torque Specifications	9.3.2
Engine Part Number Listing	Annex A4
Preparation for Initial Start-up of New Engine	11.1
Test Stand Calibration Status	14.2.1
Sealing Compounds	9.3.3
Intake Air Filtration	6.8.2
Fuel Supply Pumps	6.7.5
BSFC Measurement for BC Oil After Test Oil	11.5.23
Flush Effectiveness Demonstration	11.1.2
Validity Interpretation of Deviant Operational Conditions	14.2.2
General Assembly Instructions	9.3.1
Oil Charge for Break-In	11.4.2
Water Pump	9.3.14
Engine Coolant	7.3
Other Instrumentation	10.2.6
Referenced Documents	2
Coolant Flow Measurement System	10.2.3
Appendix
Dynamometer	6.4.1
Thermocouple and Temperature Measurement System	10.2.4
Test Operating Stages	11.5.10
Test Engine Configuration	6.13.1
Fuel Flow Measurement	6.7.2
Stand/Engine Calibration	10.1
Test Oil Flush Procedure	11.5.16
Oil Pump Screen and Pickup Tube	6.13.9
Precision	14.1
Flying Flush Oil Exchange Procedures	11.5.9
Engine Speed and Load Control	6.4
Stabilization to Stage Conditions	11.5.11
BC Oil Flush Procedure for BC Oil After Test Oil	11.5.22
Flywheel	6.13.5
Coolant Flush	11.3
Pre-test Maintenance Checklist	Annex A11
Intake Manifold	9.3.7
Test Fuel	7.2
Cleaning of Engine Parts	9.2
Oil Filter Adapter	9.3.12
Test Oil Aging	11.5.17
Timing Light	6.14.1
Safety Precautions	Annex A6
Intake Air System	9.3.18
Engine Cooling System	6.5
Summary of Test Method	4
Fuel Rail	6.13.14
Oil Pan	9.3.6

Laboratory Exhaust System	6.11.2
VIBSJ Abbreviated Length Test Requirements	Annex A13
Thermostat/Orfice Plate	6.13.3
Engine Flywheel and Guards	9.3.22
Engine Assembly Procedure	9.3
Report Format	Annex A7
Flying Flush Checklists	Annex A5
General Test Data Logging Forms	11.5.24
Pressure Measurement and Pressure Sensor Locations	6.12
ECM/EEC (Engine Control) Module	6.13.2
Engine Water Pump	6.13.11
Engine Coolant Charge for Coolant Flush	11.1.5
Statistical Equations for Mean and Standard Deviations	Annex A8
Fuel to Engine Fuel Rail	6.12.4
Validity	14.2
Break-In Operating Conditions	11.4.3
Used Oil Analysis	12.2
Fuel to Fuel Flow Meter	6.12.3
Diagnostic Review Procedures	11.5.25
Precision and Bias	14
BSFC Measurement of Aged (Phase I) Test Oil	11.5.18
Temperature Measurement	6.9
Dynamometer Load	6.4.2
Instrument Calibration	10.2
AFR Determination	6.10
Preparation of Apparatus	8
Test Stand Preparation	8.2
Dipstick Tube	9.3.13
Terminology	3
Sensors, Switches, Valves and Positioners	9.3.15
Exhaust Manifolds	9.3.21
Validity Statement	13.1
Idle Speed Control Solenoid (ISC) Block-Off Plate	6.13.10
Engine Load Measurement System	10.2.1
Engine Hardware and Related Apparatus	6.13
Thermocouple Location	6.9.5
Determination of Test Results	12
ICS Codes	43.060.40 - Fuel systems
Data Logging	11.5.13

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ASTM-D6837 2002

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