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ASTM D7549-16

Historical Revision

Standard Test Method for Evaluation of Heavy-Duty Engine Oils under High Output Conditions—Caterpillar C13 Test Procedure

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1.1 The test method covers a heavy-duty engine test procedure under high output conditions to evaluate engine oil performance with regard to piston deposit formation, piston ring sticking and oil consumption control in a combustion environment designed to minimize exhaust emissions. This test method is commonly referred to as the Caterpillar C13 Heavy-Duty Engine Oil Test.3

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 are no SI equivalent such as screw threads, National Pipe Treads (NPT), and tubing sizes.

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 A1 for general safety precautions.


5.1 This test method assesses the performance of an engine oil with respect to control of piston deposits and maintenance of oil consumption under heavy-duty operating conditions selected to accelerate deposit formation in a turbocharged, intercooled four-stroke-cycle diesel engine equipped with a combustion system that minimizes federally controlled exhaust gas emissions.

5.2 The results from this test method may be compared against specification requirements to ascertain acceptance.

5.3 The design of the test engine used in this test method is representative of many, but not all, diesel engines. This factor, along with the accelerated operating conditions, needs to be considered when comparing test results against specification requirements.

SDO ASTM: ASTM International
Document Number D7549
Publication Date April 1, 2016
Language en - English
Page Count 37
Revision Level 16
Supercedes
Committee D02.B0
Publish Date Document Id Type View
July 1, 2024 D7549-24 Revision
July 1, 2023 D7549-23 Revision
April 1, 2021 D7549-21 Revision
July 1, 2019 D7549-19 Revision
Dec. 15, 2018 D7549-18 Revision
May 1, 2017 D7549-17 Revision
April 1, 2016 D7549-16 Revision
Oct. 1, 2015 D7549-15A Revision
April 1, 2015 D7549-15 Revision
Oct. 1, 2014 D7549-14A Revision
May 1, 2014 D7549-14 Revision
May 1, 2013 D7549-13 Revision
June 1, 2009 D7549-09 Revision