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ASTM D6750-04

Historical Revision

Standard Test Methods for Evaluation of Engine Oils in a High-Speed, Single-Cylinder Diesel Engine—1K Procedure (0.4 % Fuel Sulfur) and 1N Procedure (0.04 % Fuel Sulfur)

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1.1 These test methods cover the performance of engine oils intended for use in certain diesel engines. They are performed in a standardized high-speed, single-cylinder diesel engine by either the 1K (0.4 % fuel sulfur) or 1N (0.04 % fuel sulfur) procedure. The only difference in the two test methods is the fuel used. Piston and ring groove deposit-forming tendency and oil consumption are measured. Also, the piston, the rings, and the liner are examined for distress and the rings for mobility. These test methods are required to evaluate oils intended to satisfy API service categories CF-4 and CH-4 for 1K, and CG-4 for 1N of Specification D 4485.

1.2 These test methods, although based on the original Caterpillar 1K/1N procedures, also embody TMC information letters issued before these test methods were first published. These test methods are subject to frequent change. Until the next revision of these test methods, TMC will update changes in these test methods by the issuance of information letters which shall be obtained from TMC (see ).

1.3 The values stated in inch-pound units or SI units are to be regarded separately as standard. When inch-pound units are standard, the SI units are shown in parenthesis. The values stated in each system are not necessarily exact equivalents. Because of this, combining values from the two systems may be incompatible. Therefore, use either system independently of the other.

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. Specific precautionary statements are given within the text. Being engine tests, these test methods do have definite hazards which shall be met by safe practices (see on Safety).


SDO ASTM: ASTM International
Document Number D6750
Publication Date Nov. 1, 2004
Language en - English
Page Count 71
Revision Level 04
Supercedes
Committee D02.B0.02
Publish Date Document Id Type View
July 1, 2023 D6750-23 Revision
May 1, 2019 D6750-19E01 Revision
May 1, 2019 D6750-19 Revision
April 1, 2018 D6750-18 Revision
May 1, 2017 D6750-17 Revision
Oct. 1, 2016 D6750-16 Revision
Oct. 1, 2015 D6750-15A Revision
April 1, 2015 D6750-15 Revision
May 1, 2014 D6750-14 Revision
May 1, 2013 D6750-13 Revision
Oct. 1, 2010 D6750-10B Revision
July 1, 2010 D6750-10A Revision
May 1, 2010 D6750-10 Revision
April 15, 2009 D6750-09 Revision
Oct. 15, 2008 D6750-08 Revision
Nov. 1, 2006 D6750-06 Revision
Nov. 1, 2005 D6750-05A Revision
May 1, 2005 D6750-05 Revision
Nov. 1, 2004 D6750-04 Revision
Jan. 10, 2002 D6750-02 Revision