ASTM D6750-05a

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An American National Standard
Designation: D 6750 – 05a
Standard Test Methods for
Evaluation of Engine Oils in a High-Speed, Single-Cylinder
Diesel Engine—1K Procedure (0.4 % Fuel Sulfur) and 1N
1
Procedure (0.04 % Fuel Sulfur)
This standard is issued under the fixed designation D6750; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
The test methods described in this standard can be used by any properly equipped laboratory
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without outside assistance. However, the ASTM Test Monitoring Center (TMC) provides reference
oilsandanassessmentofthetestresultsobtainedonthoseoilsbythelaboratory(seeAnnexA15).By
this means, the laboratory will know whether its use of the test methods gives results statistically
similartothoseobtainedbyotherlaboratories.Furthermore,variousagenciesrequirethatalaboratory
uses the TMC services in seeking qualification of oils against specifications. For example, the U.S.
Army has such a requirement in some of its engine oil specifications.
Accordingly, these test methods are written for those laboratories that use the TMC services.
Laboratories that choose not to use these services may ignore those portions of the test methods that
refer to the TMC.
These test methods may be modified by Information Letters issued periodically by the TMC after
the publication of this edition of the standard to become part of it. These letters are obtainable from
theTMC.Inaddition,theTMCmayissuesupplementarymemorandarelatedtothetestmethods,also
obtainable from the TMC.
1. Scope 1.2 These test methods, although based on the original
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Caterpillar1K/1Nprocedures, alsoembodyTMCinformation
1.1 Thesetestmethodscovertheperformanceofengineoils
letters issued before these test methods were first published.
intended for use in certain diesel engines. They are performed
These test methods are subject to frequent change. Until the
in a standardized high-speed, single-cylinder diesel engine by
next revision of these test methods, TMC will update changes
either the 1K (0.4% fuel sulfur) or 1N (0.04% fuel sulfur)
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in these test methods by the issuance of information letters
procedure. The only difference in the two test methods is the
which shall be obtained from TMC (see Annex A15).
fuelused.Pistonandringgroovedeposit-formingtendencyand
1.3 The values stated in either SI units or inch-pound units
oil consumption are measured.Also, the piston, the rings, and
are to be regarded separately as standard. The values stated in
the liner are examined for distress and the rings for mobility.
each system may not be exact equivalents; therefore, each
These test methods are required to evaluate oils intended to
system shall be used independently of the other. Combining
satisfy API service categories CF-4 and CH-4 for 1K, and
values from the two systems may result in non-conformance
CG-4 for 1N of Specification D4485.
with the standard.
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
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These test methods are under the jurisdiction of ASTM Committee D02 on
responsibility of the user of this standard to establish appro-
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
priate safety and health practices and determine the applica-
D02.B0 on Automotive Lubricants.
Current edition approved Nov. 1, 2005. Published December 2005. Originally
bility of regulatory limitations prior to use. Specific precau-
approved in 2002. Last previous edition approved in 2005 as D6750–05.
tionary statements appear throughout the text. Being engine
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ASTM Test Monitoring Center (TMC), 6555 Penn Ave., Pittsburgh, PA
tests, these test methods do have definite hazards that shall be
15206-4489.TheTMC issues Information Letters that supplement this test method.
This edition incorporates revisions contained in all information letters through No. met by safe practices (see Annex A16 on Safety Precautions).
05–1.
1.5 The following is the Table of Contents:
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These1K/1NtestproceduresweredevelopedbyCaterpillarInc.,P.O.Box610,
Section
Mossville, IL 61552-0610.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D 6750 – 05a
2. Referenced Documents
Introduction
Scope 1
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2.1 ASTM Standards:
Referenced documents 2
D86 Test Method for Distillation of Petroleum Products at
Terminology 3
Summary of Test Methods 4
Atmospheric Pressure
Significance and Use 5
D93 Test Methods for Flash Point by Pensky-Martens
Apparatus 6
General Laboratory Re
...