ASTM D8350-23
(Test Method)Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence IVB Spark-Ignition Engine
Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence IVB Spark-Ignition Engine
SIGNIFICANCE AND USE
5.1 This test method was developed to evaluate automotive lubricant’s effect on controlling valve-train wear and overall engine wear for overhead camshaft engines with direct acting bucket lifters.
5.2 Average intake lifter volume loss is used as a measure of an oil’s ability to prevent valve-train wear.
5.3 End-of-test oil iron concentration is used as a measure of an oil’s ability to prevent overall engine wear.
Note 2: This test method may be used for engine oil specifications such as API SP, and ILSAC GF- 6A, and GF-6B.
SCOPE
1.1 This test method measures the ability of an engine crankcase oil to control valve-train wear in spark-ignition engines at low operating temperature conditions. This test method is designed to simulate extended engine cyclic vehicle operation. The Sequence IVB Test Method uses a Toyota 2NR-FE water cooled, 4 cycle, in-line cylinder, 1.5 L engine. The primary result is bucket lifter wear. Secondary results include cam lobe nose wear and measurement of iron (Fe) wear metal concentration in the used engine oil. Other determinations such as fuel dilution of the crankcase oil, non-ferrous wear metal concentrations, total fuel consumption, 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific warning statements are provided throughout this document as necessary in each particular section.
1.4 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.
General Information
Relations
Buy Standard
Standards Content (Sample)
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.
Designation: D8350 − 23
Standard Test Method for
Evaluation of Automotive Engine Oils in the Sequence IVB
1
Spark-Ignition Engine
This standard is issued under the fixed designation D8350; 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
Portions of this test method are written for use by laboratories that make use of ASTM Test
2
Monitoring Center (TMC) services (see Annex A1 – Annex A4).
The TMC provides reference oils and engineering and statistical services to laboratories that desire
to produce test results that are statistically similar to those produced by laboratories previously
calibrated by the TMC. In general, the test purchaser decides if a calibrated test stand is to be used.
Organizations such as the American Chemistry Council require that a laboratory utilize the TMC
services as part of their test registration process. In addition, the American Petroleum Institute and the
Gear Lubricant Review Committee of the Lubricant Review Institute (SAE International) require that
a laboratory use the TMC services in seeking qualification of oils against their specifications.
The advantage of using the TMC services to calibrate test stands is that the test laboratory (and
hence the test purchaser) has an assurance that the test stand was operating at the proper level of test
severity. It should also be borne in mind that results obtained in a non-calibrated test stand may not
be the same as those obtained in a test stand participating in the ASTM TMC services process.
Laboratories that choose not to use the TMC services may simply disregard these portions. ASTM
International policy is to encourage the development of test procedures based on generic equipment.
It is recognized that there are occasions where critical/sole-source equipment has been approved by
the technical committee (surveillance panel/task force) and is required by the test procedure. The
technical committee that oversees the test procedure is encouraged to clearly identify if the part is
considered critical in the test procedure. If a part is deemed to be critical, ASTM encourages alternate
suppliers to be given the opportunity for consideration of supplying the critical part/component
providing they meet the approval process set forth by the technical committee.
An alternate supplier can start the process by initiating contact with the technical committee (current
chairs shown on ASTM TMC website). The supplier should advise on the details of the part that is
intended to be supplied. The technical committee will review the request and determine feasibility of
an alternate supplier for the requested replacement critical part. In the event that a replacement critical
part has been identified and proven equivalent the sole-source supplier footnote shall be removed from
the test procedure.
1. Scope*
1 1.1 This test method measures the ability of an engine
This test method is under the jurisdiction of ASTM Committee D02 on
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of crankcase oil to control valve-train wear in spark-ignition
Subcommittee D02.B0 on Automotive Lubricants.
engines at low operating temperature conditions. This test
Current edition approved Oct. 1, 2023. Published October 2023. Originally
method is designed to simulate extended engine cyclic vehicle
approved in 2020. Last previous edition approved in 2022 as D8350 – 22. DOI:
10.1520/D8350-23. operation. The Sequence IVB Test Method uses a Toyota
2
The ASTM Test Monitoring Center will update changes in this test method by
2NR-FE water cooled, 4 cycle, in-line cylinder, 1.5 L engine.
means of Information Letters. Information letters may be obtained from the ASTM
The primary result is bucket lifter wear. Secondary results
Test Monitoring Center (TMC), 203 Armstrong Drive, Freeport, PA 16229,
Attention: Director. www.astmtmc.org. This edition incorporates revisions in all
include cam lobe nose wear and measurement of iron (Fe) wear
Information Letters through No. 23-1.
*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 ----------------------
D8350 − 23
metal concentration in the used engine oil. Other determina- D4739 Test Method for Base Number Determination by
tions such as fuel dilution of the crankcase o
...
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: D8350 − 22 D8350 − 23
Standard Test Method for
Evaluation of Automotive Engine Oils in the Sequence IVB
1
Spark-Ignition Engine
This standard is issued under the fixed designation D8350; 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
Portions of this test method are written for use by laboratories that make use of ASTM Test
2
Monitoring Center (TMC) services (see Annex A1 – Annex A4).
The TMC provides reference oils and engineering and statistical services to laboratories that desire
to produce test results that are statistically similar to those produced by laboratories previously
calibrated by the TMC. In general, the test purchaser decides if a calibrated test stand is to be used.
Organizations such as the American Chemistry Council require that a laboratory utilize the TMC
services as part of their test registration process. In addition, the American Petroleum Institute and the
Gear Lubricant Review Committee of the Lubricant Review Institute (SAE International) require that
a laboratory use the TMC services in seeking qualification of oils against their specifications.
The advantage of using the TMC services to calibrate test stands is that the test laboratory (and
hence the test purchaser) has an assurance that the test stand was operating at the proper level of test
severity. It should also be borne in mind that results obtained in a non-calibrated test stand may not
be the same as those obtained in a test stand participating in the ASTM TMC services process.
Laboratories that choose not to use the TMC services may simply disregard these portions. ASTM
International policy is to encourage the development of test procedures based on generic equipment.
It is recognized that there are occasions where critical/sole-source equipment has been approved by
the technical committee (surveillance panel/task force) and is required by the test procedure. The
technical committee that oversees the test procedure is encouraged to clearly identify if the part is
considered critical in the test procedure. If a part is deemed to be critical, ASTM encourages alternate
suppliers to be given the opportunity for consideration of supplying the critical part/component
providing they meet the approval process set forth by the technical committee.
An alternate supplier can start the process by initiating contact with the technical committee (current
chairs shown on ASTM TMC website). The supplier should advise on the details of the part that is
intended to be supplied. The technical committee will review the request and determine feasibility of
an alternate supplier for the requested replacement critical part. In the event that a replacement critical
part has been identified and proven equivalent the sole-source supplier footnote shall be removed from
the test procedure.
1
This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of Subcommittee
D02.B0 on Automotive Lubricants.
Current edition approved Sept. 1, 2022Oct. 1, 2023. Published September 2022October 2023. Originally approved in 2020. Last previous edition approved in 20212022
ɛ1
as D8350 – 21D8350 – 22. . DOI: 10.1520/D8350-22.10.1520/D8350-23.
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), 203 Armstrong Drive, Freeport, PA 16229, Attention: Director. www.astmtmc.org. This edition incorporates revisions in all Information Letters
through No. 22-1.23-1.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D8350 − 23
1. Scope*
1.1 This test method measures the ability of an engine crankcase oil to control valve-train wear in spark-ignition engines at low
operating temperature conditions. This test method is designed to simulate extended engine cyclic vehicle operation. The Sequence
IVB Test Method uses a Toyota 2NR-FE water cooled, 4 cycle, in-line cylinder, 1.5 L engine. The primary result is bucket lifter
wear. Secondary results include cam lobe nose wear and measurement of iron (Fe) wear metal concentration in
...
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D8350 − 23
Standard Test Method for
Evaluation of Automotive Engine Oils in the Sequence IVB
1
Spark-Ignition Engine
This standard is issued under the fixed designation D8350; 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
Portions of this test method are written for use by laboratories that make use of ASTM Test
2
Monitoring Center (TMC) services (see Annex A1 – Annex A4).
The TMC provides reference oils and engineering and statistical services to laboratories that desire
to produce test results that are statistically similar to those produced by laboratories previously
calibrated by the TMC. In general, the test purchaser decides if a calibrated test stand is to be used.
Organizations such as the American Chemistry Council require that a laboratory utilize the TMC
services as part of their test registration process. In addition, the American Petroleum Institute and the
Gear Lubricant Review Committee of the Lubricant Review Institute (SAE International) require that
a laboratory use the TMC services in seeking qualification of oils against their specifications.
The advantage of using the TMC services to calibrate test stands is that the test laboratory (and
hence the test purchaser) has an assurance that the test stand was operating at the proper level of test
severity. It should also be borne in mind that results obtained in a non-calibrated test stand may not
be the same as those obtained in a test stand participating in the ASTM TMC services process.
Laboratories that choose not to use the TMC services may simply disregard these portions. ASTM
International policy is to encourage the development of test procedures based on generic equipment.
It is recognized that there are occasions where critical/sole-source equipment has been approved by
the technical committee (surveillance panel/task force) and is required by the test procedure. The
technical committee that oversees the test procedure is encouraged to clearly identify if the part is
considered critical in the test procedure. If a part is deemed to be critical, ASTM encourages alternate
suppliers to be given the opportunity for consideration of supplying the critical part/component
providing they meet the approval process set forth by the technical committee.
An alternate supplier can start the process by initiating contact with the technical committee (current
chairs shown on ASTM TMC website). The supplier should advise on the details of the part that is
intended to be supplied. The technical committee will review the request and determine feasibility of
an alternate supplier for the requested replacement critical part. In the event that a replacement critical
part has been identified and proven equivalent the sole-source supplier footnote shall be removed from
the test procedure.
1. Scope*
1
1.1 This test method measures the ability of an engine
This test method is under the jurisdiction of ASTM Committee D02 on
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of
crankcase oil to control valve-train wear in spark-ignition
Subcommittee D02.B0 on Automotive Lubricants.
engines at low operating temperature conditions. This test
Current edition approved Oct. 1, 2023. Published October 2023. Originally
method is designed to simulate extended engine cyclic vehicle
approved in 2020. Last previous edition approved in 2022 as D8350 – 22. DOI:
10.1520/D8350-23.
operation. The Sequence IVB Test Method uses a Toyota
2
The ASTM Test Monitoring Center will update changes in this test method by
2NR-FE water cooled, 4 cycle, in-line cylinder, 1.5 L engine.
means of Information Letters. Information letters may be obtained from the ASTM
The primary result is bucket lifter wear. Secondary results
Test Monitoring Center (TMC), 203 Armstrong Drive, Freeport, PA 16229,
Attention: Director. www.astmtmc.org. This edition incorporates revisions in all
include cam lobe nose wear and measurement of iron (Fe) wear
Information Letters through No. 23-1.
*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 ----------------------
D8350 − 23
metal concentration in the used engine oil. Other determina- D4739 Test Method for Base Number Determination by
tions such as fuel dilution of the crankcase oil, non-ferrous Potentiometric Hydrochloric Acid Titration
wear metal concentrations, total fuel consumption, and total oil D5185 Test Method for Multiel
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.