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ASTM D7589 : 16e1

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

Standard Details

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 trucks with gross vehicle weight 3856 kg or less. The tests are conducted using a specified spark-ignition engine with a displacement of 3.6 L (General Motors)4 on a dynamometer test stand. It applies to multi viscosity grade oils used in these applications.

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—Where there is no direct equivalent such as the units for screw threads, National Pipe threads/diameters, tubing size, and single source supply equipment specifications. Additionally, Brake Fuel Consumption (BSFC) is measured in kilograms per kilowatthour.

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, health, and environmental 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 Torque Control

6.4

Dynamometer

6.4.1

Dynamometer Torque

6.4.2

Engine Cooling System

6.5

External Oil System

6.6

Fuel System

6.7

Fuel Flow Measurement

6.7.2

Fuel Temperature and Pressure Control to the Fuel
 Flowmeter

6.7.3

Fuel Temperature and Pressure Control to Engine Fuel Rail

6.7.4

Fuel Supply Pumps

6.7.5

Fuel Filtering

6.7.6

Engine Intake Air Supply

6.8

Intake Air Humidity

6.8.1

Intake Air Filtration

6.8.2

Intake Air Pressure Relief

6.8.3

Temperature Measurement

6.9

Thermocouple Location

6.9.5

AFR Determination

6.10

Exhaust and Exhaust Back Pressure Systems

6.11

Exhaust Manifolds

6.11.1

Laboratory Exhaust System

6.11.2

Exhaust Back Pressure

6.11.3

Pressure Measurement and Pressure Sensor Locations

6.12

Engine Oil

6.12.2

Fuel to Fuel Flowmeter

6.12.3

Fuel to Engine Fuel Rail

6.12.4

Exhaust Back Pressure

6.12.5

Intake Air

6.12.6

Intake Manifold Vacuum/Absolute Pressure

6.12.7

Coolant Flow Differential Pressure

6.12.8

Crankcase Pressure

6.12.9

Engine Hardware and Related Apparatus

6.13

Test Engine Configuration

6.13.1

ECU (Power Control Module)

6.13.2

Thermostat Block-Off Adapter Plate

6.13.3

Wiring Harness

6.13.4

Oil Pan

6.13.5

Engine Water Pump Adapter Plate

6.13.6

Thermostat Block-Off Plate

6.13.7

Oil Filter Adapter Plate

6.13.8

Modified Throttle Body Assembly

6.13.9

Fuel Rail

6.13.10

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

Preparation of Apparatus

8

Test Stand Preparation

8.2

Engine Preparation

9

Cleaning of Engine Parts

9.3

Engine Assembly Procedure

9.4

General Assembly Instructions

9.4.1

Bolt Torque Specifications

9.4.2

Sealing Compounds

9.4.3

Harmonic Balancer

9.4.5

Thermostat

9.4.6

Coolant Inlet

9.4.7

Oil Filter Adapter

9.4.8

Dipstick Tube

9.4.9

Sensors, Switches, Valves, and Positioners

9.4.10

Ignition System

9.4.11

Fuel Injection System

9.4.12

Intake Air System

9.4.13

Engine Management System

9.4.14

Accessory Drive Units

9.4.15

Exhaust Manifolds

9.4.16

Engine Flywheel and Guards

9.4.17

Lifting of Assembled Engines

9.4.18

Engine Mounts

9.4.19

Non-Phased Camshaft Gears

9.4.20

Internal Coolant Orifice

9.4.21

Calibration

10

Stand/Engine Calibration

10.1

Procedure

10.1.1

Reporting of Reference Results

10.1.2

Instrument Calibration

10.2

Engine Torque Measurement System

10.2.3

Fuel Flow Measurement System

10.2.4

Coolant Flow Measurement System

10.2.5

Thermocouple and Temperature Measurement System

10.2.6

Humidity Measurement System

10.2.7

Other Instrumentation

10.2.8

Test Procedure

11

External Oil System

11.1

Flush Effectiveness Demonstration

11.2

Preparation for Oil Charge

11.3

Initial Engine Start-Up

11.4

New Engine Break-In

11.5

Oil Charge for Break-In

11.5.2

Break-In Operating Conditions

11.5.3

Standard Requirements for Break-In

11.5.4

Routine Test Operation

11.6

Start-Up and Shutdown Procedures

11.6.1

Flying Flush Oil Exchange Procedures

11.6.2

Test Operating Stages

11.6.3

Stabilization to Stage Conditions

11.6.4

General Information

Status : ACTIVE
Standard Type: Main
Document No: ASTM D7589 : 16e1
Document Year: 2016
Pages: 65
Edition: e1
  • Section Volume:
  • 05.04 Volume 05.04 Petroleum Products, Liquid Fuels, and Lubricants (IV): D6973-D7755
  • ICS:
  • 43.060.01 Internal combustion engines for road vehicles in general

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