5.1 Test Method—The data obtained from the use of this test method provide a comparative index of the fuel-saving capabilities of automotive engine oils under repeatable laboratory conditions. A BL has been established for this test to provide a standard against which all other oils can be compared. The BL oil is an SAE 20W-30 grade fully formulated lubricant. The test procedure was not designed to give a precise estimate of the difference between two test oils without adequate replication. The test method was developed to compare the test oil to the BL oil. Companion test methods used to evaluate engine oil performance for specification requirements are discussed in the latest revision of Specification D4485.
5.2 Use—The Sequence VID test method is useful for engine oil fuel economy specification acceptance. It is used in specifications and classifications of engine lubricating oils, such as the following:
5.2.1 Specification D4485.
5.2.3 SAE Classification J304.
5.2.4 SAE Classification J1423.
Область применения1.1 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 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
Referenced Documents
Terminology
Summary of Test Method
Significance and Use
Apparatus
General
Test Engine Configuration
Laboratory Ambient Conditions
Engine Speed and Torque Control
Dynamometer
Dynamometer Torque
Engine Cooling System
External Oil System
Fuel System
Fuel Flow Measurement
Fuel Temperature and Pressure Control to the Fuel
Flowmeter
Fuel Temperature and Pressure Control to Engine Fuel Rail
Fuel Supply Pumps
Fuel Filtering
Engine Intake Air Supply
Intake Air Humidity
Intake Air Filtration
Intake Air Pressure Relief
Temperature Measurement
Thermocouple Location
AFR Determination
Exhaust and Exhaust Back Pressure Systems
Exhaust Manifolds
Laboratory Exhaust System
Exhaust Back Pressure
Pressure Measurement and Pressure Sensor Locations
Engine Oil
Fuel to Fuel Flowmeter
Fuel to Engine Fuel Rail
Exhaust Back Pressure
Intake Air
Intake Manifold Vacuum/Absolute Pressure
Coolant Flow Differential Pressure
Crankcase Pressure
Engine Hardware and Related Apparatus
Test Engine Configuration
ECU (Power Control Module)
Thermostat Block-Off Adapter Plate
Wiring Harness
Oil Pan
Engine Water Pump Adapter Plate
Thermostat Block-Off Plate
Oil Filter Adapter Plate
Modified Throttle Body Assembly
Fuel Rail
Miscellaneous Apparatus Related to Engine Operation
Reagents and Materials
Engine Oil
Test Fuel
Engine Coolant
Cleaning Materials
Preparation of Apparatus
Test Stand Preparation
Engine Preparation
Cleaning of Engine Parts
Engine Assembly Procedure
General Assembly Instructions
Bolt Torque Specifications
Sealing Compounds
Harmonic Balancer
Thermostat
Coolant Inlet
Oil Filter Adapter
Dipstick Tube
Sensors, Switches, Valves, and Positioner’s
Ignition System
Fuel Injection System
Intake Air System
Engine Management System
Accessory Drive Units
Exhaust Manifolds
Engine Flywheel and Guards
Lifting of Assembled Engines
Engine Mounts
Non-Phased Camshaft Gears
Internal Coolant Orifice
Calibration
Stand/Engine Calibration
Procedure
Reporting of Reference Results
Analysis of Reference/Calibration Oils
Instrument Calibration
Engine Torque Measurement System
Fuel Flow Measurement System
Coolant Flow Measurement System
Thermocouple and Temperature Measurement System
Humidity Measurement System
Other Instrumentation
Test Procedure
External Oil System
Flush Effectiveness Demonstration
Preparation for Oil Charge
Initial Engine Start-Up
New Engine Break-In
Oil Charge for Break-In
Break-In Operating Conditions
Standard Requirements for Break-In
Routine Test Operation
Start-Up and Shutdown Procedures
Flying Flush Oil Exchange Procedures
Test Operating Stages
Stabilization to Stage Conditions
Stabilized BSFC Measurement Cycle
BLB1 Oil Flush Procedure for BL Oil Before Test Run 1
BSFC Measurement of BLB1 Oil Before Test Oil
BLB2 Oil Flush Procedure for BL Oil Before Test Oil Run 2
BSFC Measurement of BLB2 Oil Before Test Oil
Percent Delta Calculation for BLB1 vs. BLB2
Test Oil Flush Procedure
Test Oil Aging, Phase I
BSFC Measurement of Aged (Phase I) Test Oil
Test Oil Aging, Phase II
BSFC Measurement of Aged (Phase II) Test Oil
Oil Consumption and Sampling
Flush Procedure for BL Oil (BLA) After Test Oil
General Test Data Logging Forms
Diagnostic Review Procedures
Determination of Test Results
Final Test Report
Precision and Bias
Keywords
Annexes
The Role of the ASTM Test Monitoring Center and the
Calibration Program
Detailed Specifications and Drawings of Apparatus
Oil Heater Cerrobase Refill Procedure
Engine Part Number Listing
Safety Precautions
Report Format
Statistical Equations for Mean and Standard Deviations
Oil Sump Full Level Determination Consumption
Measurement Calibration Procedure
Fuel Injector Evaluation
Pre-test Maintenance Checklist
Blow-by Ventilation System Requirements
Calculation of Test Results
Calculation of Unweighted Baseline Shift
Non–Phased Cam Gear and Position Actuator Installation Procedure
Appendix
Procurement of Test Materials