ASTM D6891-13a
(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 − 13a
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-
duction Period Method)
1.2 The values stated in SI units are to be regarded as
D3525 Test Method for Gasoline Diluent in Used Gasoline
standard. No other units of measurement are included in this
Engine Oils by Gas Chromatography
standard.
D4485 Specification for Performance of Active API Service
1.2.1 Exceptions—Where there is no direct SI equivalent
Category Engine Oils
such as pipe fittings, tubing, NPT screw threads/diameters, or
D5185 Test Method for Multielement Determination of
single source equipment specified.
Used and Unused Lubricating Oils and Base Oils by
1.3 This standard does not purport to address all of the
Inductively Coupled Plasma Atomic Emission Spectrom-
safety concerns, if any, associated with its use. It is the
etry (ICP-AES)
responsibility of the user of this standard to establish appro-
D5844 Test Method for Evaluation of Automotive Engine
priate safety and health practices and determine the applica-
Oils for Inhibition of Rusting (Sequence IID) (Withdrawn
bility of regulatory limitations prior to use. See Annex A5 for
4
2003)
specific safety precautions.
E230 Specification and Temperature-Electromotive Force
(EMF) Tables for Standardized Thermocouples
2.2 API Standard:
5
1
This test method is under the jurisdiction of ASTM Committee D02 on
API 1509 Engine Oil Licensing and Certification System
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of
Subcommittee D02.B0 on Automotive Lubricants.
3
Current edition approved Oct. 1, 2013. Published October 2013. Originally For referenced ASTM standards, visit the ASTM website, www.astm.org, or
approved in 2003. Last previous edition approved in 2013 as D6891 – 13. DOI: contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
10.1520/D6891-13A. Standards volume information, refer to the standard’s Document Summary page on
2
TheASTM Test Monitoring Center will update changes in this test method by the ASTM website.
4
means of Information Letters. Information letters may be obtained from theASTM The last approved version of this historical standard is referenced on
Test Monitoring Center (TMC), 6555 Penn Ave., Pittsburgh, PA 15206-4489, www.astm.org.
5
Attention: Administrator. www.astmtmc.cmu.edu. This edition incorporates all Available from The American Petroleum Institute (API), 1220 L. St., NW,
Information Letters through No. 13–1. 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
---------------------- Page: 1 ----------------------
D6891 − 13a
2.3 SAE Standards: 3.2.5 flushing, n—the installation of a fresh charge of
SAE J183 Engine Oil Performance and Engine Service lubricant and oil filter for the purpose of running the engine to
6
Classification reduce and eliminate remnants of the previous oil charge.
SAE J254 Instrumentation and Techniques for Exhaust Gas 3.2.5.1 Discussion—Flushing may be carried out in an
6
Emissions Measurement iterated process
...
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 − 13 D6891 − 13a
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*
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 Multielement Determination of Used and Unused Lubricating Oils and 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 Products, Liquid Fuels, and Lubricants and is the direct responsibility of
Subcommittee D02.B0 on Automotive Lubricants.
Current edition approved May 1, 2013Oct. 1, 2013. Published June 2013October 2013. Originally approved in 2003. Last previous edition approved in 20102013 as
D6891 – 10a.D6891 – 13. DOI: 10.1520/D6891-13.10.1520/D6891-13A.
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. 10–1.13–1.
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’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
---------------------- Page: 1 ----------------------
D6891 − 13a
2.3 SAE Standards:
6
SAE J183 Engine Oil
...
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