ASTM D6837-09a
(Test Method)Standard 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
Standard 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
SIGNIFICANCE AND USE
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 baseline calibration oil (hereafter referred to as BC oil) has been established for this test to provide a standard against which all other oils can be compared. The BC oil is an SAE 5W-30 grade fully formulated lubricant. There is a direct correlation of Test Method D6837 (Sequence VIB) Fuel Economy Improvement (FEI) by percent with the fuel economy results obtained from vehicles representative of current production running under the current EPA testing cycles. The test procedure was not designed to give a precise estimate of the difference between two test oils without adequate replication. Rather, it was developed to compare a test oil to BC oil. Companion test methods used to evaluate engine oil performance for specification requirements are discussed in the latest revision of Specification D4485.
Use—The Sequence VIB 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:
Specification D4485.
API Publication 1509.
SAE Classification J304.
SAE Classification J1423.
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 of 3856 kg or less. The tests are conducted on a dynamometer test stand using a specified spark-ignition engine with a displacement of 4.6-L. 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 Annex A13 refer to the corresponding section of the Sequence VIB test method.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3.1 Exceptions—Where there is no direct SI equivalent such as screw threads, National Pipe Threads/diameters, tubing size, or single source supply equipment specifications. Brake Specific Fuel Consumption is measured in kilograms per kilowatthour. In Figs. A2.4, A2.5, and A2.8, inch-pound units are to be regarded as standard.
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 and health practices and determine the applicability of regulatory limitations prior to use.
1.5 This test method is arranged as follows: SubjectSection Introduction Scope1 Referenced Documents2 Terminology3 Summary of Test Method4 Significance and Use5 Apparatus6 General6.1 Test Engine Configuration6.2 Laboratory Ambient Conditions6.3 Engine Speed and Torque Control6.4 Dynamometer6.4.1 Dynamometer Torque6.4.2 Engine Cooling System6.5 External Oil System6.6 Fuel System6.7 Fuel Flow Measurement6.7.2 Fuel Temperature and Pressure Control to
the Fuel Flowmeter6.7.3 Fuel Temperature and Pressure Control to
Engine Fuel Rail6.7.4 Fuel Supply Pumps6.7.5 Fuel Filtering6.7.6 Engine Intake Air Supply6.8 Intake Air Humidity6.8.1 Intake Air Filtration6.8.2 Intake Air Pressure Relief6.8.3 Temperature Measurement6.9 Thermocouple Location6.9.5 AFR Determination6.10 Exhaust and Exhaust Back Pressure Systems6.11 Exhaust Manifolds6.11.1 Laboratory Exhaust System6.11.2 Exhaust Back Pressure6.11.3 Pressure Measurement and Pressure Sensor
Locations6.12 Engine Oil6.12.2 Fuel to Fuel Flowmeter6.12.3 Fuel to Engine Fuel Rail6.12.4 Exhaust Back Pressure6.12.5 Intake Air6.12.6 Intake Manifold Vacuu...
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Designation: D6837 – 09a
Standard Test Method for
Measurement of Effects of Automotive Engine Oils on Fuel
Economy of Passenger Cars and Light-Duty Trucks in
,
1 2
Sequence VIB Spark Ignition Engine
This standard is issued under the fixed designation D6837; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
Thetestmethoddescribedinthisstandardcanbeusedbyanyproperlyequippedlaboratory,without
3
outside assistance. However, the ASTM Test Monitoring Center (TMC) provides reference oils and
assessment of the test results obtained on those oils by the laboratory (seeAnnexA1). By this means,
the laboratory will know whether their use of the test method gives results statistically similar to those
obtainedbyotherlaboratories.Furthermore,variousagenciesrequirethatalaboratoryutilizetheTMC
services in seeking qualification of oils against specifications. For example, the American Petroleum
Institute (API) imposes such a requirement, in connection with several U.S.Army engine lubricating
oil specifications.
Accordingly, this test method is written for use by laboratories, which utilize the TMC services.
Laboratories that choose not to use those services may simply ignore those portions of the test method
that refer to the TMC.
This test method may be modified by means of Information Letters issued by theTMC. In addition,
the TMC may issue supplementary memoranda related to the test method. Users of this test method
shall contact the TMC, Attention: Administrator, to obtain the most recent of these.
1. Scope exception of the items specifically listed in Annex A13. The
procedure modifications listed in Annex A13 refer to the
1.1 This test method covers an engine test procedure for the
corresponding section of the Sequence VIB test method.
measurement of the effects of automotive engine oils on the
1.3 The values stated in SI units are to be regarded as
fuel economy of passenger cars and light-duty trucks with
standard. No other units of measurement are included in this
grossvehicleweightof3856kgorless.Thetestsareconducted
standard.
on a dynamometer test stand using a specified spark-ignition
1.3.1 Exceptions—Where there is no direct SI equivalent
engine with a displacement of 4.6-L. It applies to multiviscos-
suchasscrewthreads,NationalPipeThreads/diameters,tubing
ity grade oils used in these applications.
size, or single source supply equipment specifications. Brake
1.2 This test method also provides for the running of an
Specific Fuel Consumption is measured in kilograms per
abbreviated length test that is referred to as the VIBSJ. The
kilowatthour. In Figs. A2.4, A2.5, and A2.8, inch-pound units
procedure for VIBSJ is identical to the Sequence VIB with the
are to be regarded as standard.
1.4 This standard does not purport to address all of the
1
This test method is under the jurisdiction of ASTM Committee D02 on
safety concerns, if any, associated with its use. It is the
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
responsibility of the user of this standard to establish appro-
D02.B0.01 on Passenger Car Engine Oils.
priate safety and health practices and determine the applica-
Current edition approved Oct. 1, 2009. Published November 2009. Originally
approved in 2002. Last previous edition approved in 2009 as D6837–09. DOI:
bility of regulatory limitations prior to use.
10.1520/D6837-09a.
1.5 This test method is arranged as follows:
2
The multi-cylinder engine test sequences were originally developed in 1956 by
Subject Section
anASTMCommitteeD02group.Subsequently,theprocedureswerepublishedinan
Introduction
ASTM special technical publication. The Sequence VIB was published as Research
Scope 1
Report RR:D02-1469 dated April 8, 1999.
Referenced Documents 2
3
ASTMTestMonitoringCenter,6555PennAvenue,Pittsburgh,PA15206-4489.
Terminology 3
For other information, refer to Research Report RR:D02-1469, Sequence VIB Test
Summary of Test Method 4
Development. This research report and this test method are supplemented by
Significance and Use 5
Information Letters and Memoranda issued by the ASTM TMC. This edition
Apparatus 6
incorporates revisions in all Information Letters through No. 08–1.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
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D6837 – 09a
Subject Section Subject Section
General 6.1 Dipstick Tube 9.3.13
Test Engine Configuration 6.2 Water Pump 9.3.14
Laboratory Ambient Conditions 6.3 Sensors, Switches, Valves, and Positioners 9.3.15
Engine Speed a
...
This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:D6837–09 Designation: D6837 – 09a
Standard Test Method for
Measurement of Effects of Automotive Engine Oils on Fuel
Economy of Passenger Cars and Light-Duty Trucks in
,
1 2
Sequence VIB Spark Ignition Engine
This standard is issued under the fixed designation D6837; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
Thetestmethoddescribedinthisstandardcanbeusedbyanyproperlyequippedlaboratory,without
3
outside assistance. However, the ASTM Test Monitoring Center (TMC) provides reference oils and
assessment of the test results obtained on those oils by the laboratory (seeAnnexA1). By this means,
the laboratory will know whether their use of the test method gives results statistically similar to those
obtainedbyotherlaboratories.Furthermore,variousagenciesrequirethatalaboratoryutilizetheTMC
services in seeking qualification of oils against specifications. For example, the American Petroleum
Institute (API) imposes such a requirement, in connection with several U.S.Army engine lubricating
oil specifications.
Accordingly, this test method is written for use by laboratories, which utilize the TMC services.
Laboratories that choose not to use those services may simply ignore those portions of the test method
that refer to the TMC.
This test method may be modified by means of Information Letters issued by theTMC. In addition,
the TMC may issue supplementary memoranda related to the test method. Users of this test method
shall contact the TMC, Attention: Administrator, to obtain the most recent of these.
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 of 3856 kg or less. The tests are conducted on a
dynamometer test stand using a specified spark-ignition engine with a displacement of 4.6-L. 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 Annex A13 refer to the corresponding section of the Sequence VIB test method.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3.1 Exceptions—Where there is no direct SI equivalent such as screw threads, National Pipe Threads/diameters, tubing size,
or single source supply equipment specifications. Brake Specific Fuel Consumption is measured in kilograms per kilowatthour. In
Figs. A2.4, A2.5, and A2.8, inch-pound units are to be regarded as standard.
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 and health practices and determine the applicability of regulatory
limitations prior to use.
1.5 This test method is arranged as follows:
1
This test method is under the jurisdiction ofASTM Committee D02 on Petroleum Products and Lubricants and is the direct responsibility of Subcommittee D02.B0.01
on Passenger Car Engine Oils.
Current edition approved April 15,Oct. 1, 2009. Published OctoberNovember 2009. Originally approved in 2002. Last previous edition approved in 20082009 as
D6837–08.D6837–09. DOI: 10.1520/D6837-09a.
2
The multi-cylinder engine test sequences were originally developed in 1956 by an ASTM Committee D02 group. Subsequently, the procedures were published in an
ASTM special technical publication. The Sequence VIB was published as Research Report D02-1469 dated April 8, 1999.
3
ASTM Test Monitoring Center, 6555 Penn Avenue, Pittsburgh, PA 15206-4489. For other information, refer to Research Report D02-1469, Sequence VIB Test
Development. This research report and this test method are supplemented by Information Letters and Memoranda issued by the ASTM TMC. This edition incorporates
revisions in all Information Letters through No. 07–1. 08–1.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ---------------------
...
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