ASTM D6891-13
(Test Method)Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence IVA Spark-Ignition Engine
Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence IVA Spark-Ignition Engine
SIGNIFICANCE AND USE
5.1 This test method was developed to evaluate automotive lubricant’s effect on controlling cam lobe wear for overhead valve-train equipped engines with sliding cam followers.Note 1—This test method may be used for engine oil specifications, such as Specification D4485, API 1509, SAE J183, and ILSC GF 3.
SCOPE
1.1 This test method measures the ability of crankcase oil to control camshaft lobe wear for spark-ignition engines equipped with an overhead valve-train and sliding cam followers. This test method is designed to simulate extended engine idling vehicle operation. The Sequence IVA Test Method uses a Nissan KA24E engine. The primary result is camshaft lobe wear (measured at seven locations around each of the twelve lobes). Secondary results include cam lobe nose wear and measurement of iron wear metal concentration in the used engine oil. Other determinations such as fuel dilution of crankcase oil, non-ferrous wear metal concentrations, and total oil consumption, can be useful in the assessment of the validity of the test results.2
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 SI equivalent such as pipe fittings, tubing, NPT screw threads/diameters, or single source equipment specified.
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. See Annex A5 for specific safety precautions.
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Designation: D6891 − 13
StandardTest Method for
Evaluation of Automotive Engine Oils in the Sequence IVA
1
Spark-Ignition Engine
This standard is issued under the fixed designation D6891; 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.
1. Scope* 2. Referenced Documents
3
1.1 This test method measures the ability of crankcase oil to
2.1 ASTM Standards:
controlcamshaftlobewearforspark-ignitionenginesequipped
D235 Specification for Mineral Spirits (Petroleum Spirits)
with an overhead valve-train and sliding cam followers. This
(Hydrocarbon Dry Cleaning Solvent)
test method is designed to simulate extended engine idling
D287 Test Method for API Gravity of Crude Petroleum and
vehicle operation. The Sequence IVA Test Method uses a
Petroleum Products (Hydrometer Method)
Nissan KA24E engine. The primary result is camshaft lobe
D323 TestMethodforVaporPressureofPetroleumProducts
wear (measured at seven locations around each of the twelve
(Reid Method)
lobes). Secondary results include cam lobe nose wear and
D381 Test Method for Gum Content in Fuels by Jet Evapo-
measurement of iron wear metal concentration in the used
ration
engine oil. Other determinations such as fuel dilution of
D445 Test Method for Kinematic Viscosity of Transparent
crankcase oil, non-ferrous wear metal concentrations, and total
and Opaque Liquids (and Calculation of Dynamic Viscos-
oilconsumption,canbeusefulintheassessmentofthevalidity
ity)
2
of the test results.
D525 Test Method for Oxidation Stability of Gasoline (In-
1.2 The values stated in SI units are to be regarded as duction Period Method)
standard. No other units of measurement are included in this D3525 Test Method for Gasoline Diluent in Used Gasoline
standard. Engine Oils by Gas Chromatography
1.2.1 Exceptions—Where there is no direct SI equivalent D4485 Specification for Performance of Active API Service
such as pipe fittings, tubing, NPT screw threads/diameters, or
Category Engine Oils
single source equipment specified.
D5185 TestMethodforDeterminationofAdditiveElements,
Wear Metals, and Contaminants in Used Lubricating Oils
1.3 This standard does not purport to address all of the
and Determination of Selected Elements in Base Oils by
safety concerns, if any, associated with its use. It is the
Inductively Coupled Plasma Atomic Emission Spectrom-
responsibility of the user of this standard to establish appro-
etry (ICP-AES)
priate safety and health practices and determine the applica-
D5844 Test Method for Evaluation of Automotive Engine
bility of regulatory limitations prior to use. See Annex A5 for
Oils for Inhibition of Rusting (Sequence IID) (Withdrawn
specific safety precautions.
4
2003)
E230 Specification and Temperature-Electromotive Force
1
This test method is under the jurisdiction of ASTM Committee D02 on
(EMF) Tables for Standardized Thermocouples
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
D02.B0 on Automotive Lubricants.
Current edition approved May 1, 2013. Published June 2013. Originally
approved in 2003. Last previous edition approved in 2010 as D6891 – 10a. DOI:
3
10.1520/D6891-13. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
2
TheASTM Test Monitoring Center will update changes in this test method by contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
means of Information Letters. Information letters may be obtained from theASTM Standards volume information, refer to the standard’s Document Summary page on
Test Monitoring Center (TMC), 6555 Penn Ave., Pittsburgh, PA 15206-4489, the ASTM website.
4
Attention: Administrator. www.astmtmc.cmu.edu. This edition incorporates all The last approved version of this historical standard is referenced on
Information Letters through No. 10–1. www.astm.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D6891 − 13
2.2 API Standard: 3.2.4 cam nose wear, n—the maximum linear deviation of a
5
API 1509 Engine Oil Licensing and Certification System worn nose profile from the unworn profile; the nose is the high
lift point on the particular cam lobe.
2.3 SAE Standards:
SAE J183 Engine Oil Performance and Engine Service
3.2.5 flushing, n—the installation of a fresh charge of
6
Classification
lubricant and oil filter for the purpose of running the engine to
SAE J254 Instrumentation and Techniques for Exhaust Gas
reduce and eliminate remnants of the previous oil
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM 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: D6891 − 10a D6891 − 13
Standard Test Method for
Evaluation of Automotive Engine Oils in the Sequence IVA
1
Spark-Ignition Engine
This standard is issued under the fixed designation D6891; 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.
1. Scope Scope*
1.1 This test method measures the ability of crankcase oil to control camshaft lobe wear for spark-ignition engines equipped
with an overhead valve-train and sliding cam followers. This test method is designed to simulate extended engine idling vehicle
operation. The Sequence IVA Test Method uses a Nissan KA24E engine. The primary result is camshaft lobe wear (measured at
seven locations around each of the twelve lobes). Secondary results include cam lobe nose wear and measurement of iron wear
metal concentration in the used engine oil. Other determinations such as fuel dilution of crankcase oil, non-ferrous wear metal
2
concentrations, and total oil consumption, can be useful in the assessment of the validity of the test results.
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 SI equivalent such as pipe fittings, tubing, NPT screw threads/diameters, or single
source equipment specified.
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. See Annex A5 for specific safety precautions.
2. Referenced Documents
3
2.1 ASTM Standards:
D235 Specification for Mineral Spirits (Petroleum Spirits) (Hydrocarbon Dry Cleaning Solvent)
D287 Test Method for API Gravity of Crude Petroleum and Petroleum Products (Hydrometer Method)
D323 Test Method for Vapor Pressure of Petroleum Products (Reid Method)
D381 Test Method for Gum Content in Fuels by Jet Evaporation
D445 Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)
D525 Test Method for Oxidation Stability of Gasoline (Induction Period Method)
D3525 Test Method for Gasoline Diluent in Used Gasoline Engine Oils by Gas Chromatography
D4485 Specification for Performance of Active API Service Category Engine Oils
D5185 Test Method for Determination of Additive Elements, Wear Metals, and Contaminants in Used Lubricating Oils and
Determination of Selected Elements in Base Oils by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES)
4
D5844 Test Method for Evaluation of Automotive Engine Oils for Inhibition of Rusting (Sequence IID) (Withdrawn 2003)
E230 Specification and Temperature-Electromotive Force (EMF) Tables for Standardized Thermocouples
2.2 API Standard:
5
API 1509 Engine Oil Licensing and Certification System
1
This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products and Lubricants and is the direct responsibility of Subcommittee D02.B0 on
Automotive Lubricants.
Current edition approved Oct. 1, 2010May 1, 2013. Published November 2010June 2013. Originally approved in 2003. Last previous edition approved in 2010 as
D6891D6891 – 10a.–10. DOI: 10.1520/D6891-10A.10.1520/D6891-13.
2
The ASTM Test Monitoring Center will update changes in this test method by means of Information Letters. Information letters may be obtained from the ASTM Test
Monitoring Center (TMC), 6555 Penn Ave., Pittsburgh, PA 15206-4489, Attention: Administrator. www.astmtmc.cmu.edu. This edition incorporates all Information Letters
through No. 10–1.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’sstandard’s Document Summary page on the ASTM website.
4
The last approved version of this historical standard is referenced on www.astm.org.
5
Available from The American Petroleum Institute (API), 1220 L. St., NW, Washington, DC 20005.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D6891
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