ASTM D8226 - 19
Standard Test Method for Measurement of Effects of Automotive Engine Oils on Fuel Economy of Passenger Cars and Light-Duty Trucks in Sequence VIF Spark Ignition Engine
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Significance and Use
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 VIF 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.
5.2.2 API 1509.
5.2.3 SAE Classification J304.
5.2.4 SAE Classification J1423.
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 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 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 kilowatt-hour.
1.3 This test method is arranged as follows:
|
| 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 Flow Meter | 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 Flow meter | 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 Positioner’s | 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 |
| Analysis of Reference/Calibration Oils | 10.1.3 |
| 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 |
| Stabilized BSFC Measurement Cycle | 11.6.5 |
| BLB1 Oil Flush Procedure for BL Oil Before Test Run 1 | 11.6.6 |
| BSFC Measurement of BLB1 Oil Before Test Oil | 11.6.7 |
| BLB2 Oil Flush Procedure for BL Oil Before Test Oil Run 2 | 11.6.8 |
| BSFC Measurement of BLB2 Oil Before Test Oil | 11.6.9 |
| Percent Delta Calculation for BLB1 vs. BLB2 | 11.6.10 |
| Test Oil Flush Procedure | 11.6.11 |
| Test Oil Aging, Phase I | 11.6.12 |
| BSFC Measurement of Aged (Phase I) Test Oil | 11.6.13 |
| Test Oil Aging, Phase II | 11.6.14 |
| BSFC Measurement of Aged (Phase II) Test Oil | 11.6.15 |
| Oil Consumption and Sampling | 11.6.16 |
| Flush Procedure for BL Oil (BLA) After Test Oil | 11.6.17 |
| General Test Data Logging Forms | 11.6.18 |
| Diagnostic Review Procedures | 11.6.19 |
| Determination of Test Results | 12 |
| Final Test Report | 13 |
| Precision and Bias | 14 |
| Keywords | 15 |
| Annexes |
|
| ASTM Test Monitoring Center Organization | Annex A1 |
| ASTM Test Monitoring Center: Calibration Procedures | Annex A2 |
| ASTM Test Monitoring Center: Maintenance Activities | Annex A3 |
| ASTM Test Monitoring Center: Related Information | Annex A4 |
| Detailed Specifications and Drawings of Apparatus | Annex A5 |
| Oil Heater Bolton 255 Refill Procedure | Annex A6 |
| Engine Part Number Listing | Annex A7 |
| Safety Precautions | Annex A8 |
| Sequence VIF Test Report Forms and Data Dictionary | Annex A9 |
| Statistical Equations for Mean and Standard Deviations | Annex A10 |
| Determining the Oil Sump Full Level & Consumption | Annex A11 |
| Fuel Injection Evaluation | Annex A12 |
| Pre-test Maintenance Checklist | Annex A13 |
| Blow-by Ventilation System Requirements | Annex A14 |
| Calculation of Test Results | Annex A15 |
| Calculation of Un-weighted Baseline Shift | Annex A16 |
| Non-Phased Cam Gear and Position Actuator Installation and GM Short Block Assembly Procedure | Annex A17 |
| Appendix |
|
| Procurement of Test Methods | Appendix X1 |
1.4 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.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D86 Test Method for Distillation of Petroleum Products and Liquid Fuels at Atmospheric Pressure
D235 Specification for Mineral Spirits (Petroleum Spirits) (Hydrocarbon Dry Cleaning Solvent)
D240 Test Method for Heat of Combustion of Liquid Hydrocarbon Fuels by Bomb Calorimeter
D323 Test Method for Vapor Pressure of Petroleum Products (Reid Method)
D381 Test Method for Gum Content in Fuels by Jet Evaporation
D525 Test Method for Oxidation Stability of Gasoline (Induction Period Method)
D1319 Test Method for Hydrocarbon Types in Liquid Petroleum Products by Fluorescent Indicator Adsorption
D2699 Test Method for Research Octane Number of Spark-Ignition Engine Fuel
D3231 Test Method for Phosphorus in Gasoline
D3237 Test Method for Lead in Gasoline by Atomic Absorption Spectroscopy
D3338 Test Method for Estimation of Net Heat of Combustion of Aviation Fuels
D4052 Test Method for Density, Relative Density, and API Gravity of Liquids by Digital Density Meter
D4175 Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
D4485 Specification for Performance of Active API Service Category Engine Oils
D5185 Test Method for Multielement Determination of Used and Unused Lubricating Oils and Base Oils by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES)
D5453 Test Method for Determination of Total Sulfur in Light Hydrocarbons, Spark Ignition Engine Fuel, Diesel Engine Fuel, and Engine Oil by Ultraviolet Fluorescence
D6837 Test Method for Measurement of Effects of Automotive Engine Oils on Fuel Economy of Passenger Cars and Light-Duty Trucks in Sequence VIB Spark Ignition Engine
D6894 Test Method for Evaluation of Aeration Resistance of Engine Oils in Direct-Injected Turbocharged Automotive Diesel Engine
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E191 Specification for Apparatus For Microdetermination of Carbon and Hydrogen in Organic and Organo-Metallic Compounds
ICS Code
ICS Number Code 75.100 (Lubricants, industrial oils and related products)
UNSPSC Code
UNSPSC Code 15121501(Engine oil)
Referencing This Standard
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DOI: 10.1520/D8226-19
Citation Format
ASTM D8226-19, Standard Test Method for Measurement of Effects of Automotive Engine Oils on Fuel Economy of Passenger Cars and Light-Duty Trucks in Sequence VIF Spark Ignition Engine