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ASTM D7422-09a

Historical Revision

Standard Test Method for Evaluation of Diesel Engine Oils in T-12 Exhaust Gas Recirculation Diesel Engine

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1.1 This test method covers an engine test procedure for evaluating diesel engine oils for performance characteristics, including lead corrosion and wear of piston rings and cylinder liners in an engine equipped with exhaust gas recirculation and running on ultra-low sulfur diesel fuel. This test method is commonly referred to as the Mack T-12.

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 ExceptionWhere there is no direct SI equivalent, such as the units for screw threads, National Pipe Threads/diameters, tubing size, and single source supply equipment specifications.

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 A6 for specific safety precautions.

This test method was developed to evaluate the wear performance of engine oils in turbocharged and intercooled four-cycle diesel engines equipped with EGR and running on ultra-low sulfur diesel fuel. Obtain results from used oil analysis and component measurements before and after test.

The test method may be used for engine oil specification acceptance when all details of the procedure are followed.

SDO ASTM: ASTM International
Document Number D7422
Publication Date Oct. 1, 2009
Language en - English
Page Count 34
Revision Level 09a
Supercedes
Committee D02.B0
Publish Date Document Id Type View
Dec. 1, 2023 D7422-23 Revision
April 1, 2022 D7422-22 Revision
Nov. 1, 2019 D7422-19 Revision
Oct. 1, 2017 D7422-17A Revision
May 1, 2017 D7422-17 Revision
Oct. 1, 2016 D7422-16A Revision
April 1, 2016 D7422-16 Revision
Oct. 1, 2015 D7422-15A Revision
April 1, 2015 D7422-15 Revision
Oct. 1, 2014 D7422-14A Revision
May 1, 2014 D7422-14 Revision
May 1, 2013 D7422-13 Revision
April 15, 2012 D7422-12 Revision
Oct. 1, 2011 D7422-11 Revision
Oct. 1, 2010 D7422-10A Revision
May 1, 2010 D7422-10 Revision
Oct. 1, 2009 D7422-09A Revision
April 15, 2009 D7422-09 Revision
May 1, 2008 D7422-08 Revision