• ASTM D8617-25

ASTM D8617-25

Standard Test Method for Evaluation of Automotive Engine Oils for Soot-Viscosity Performance in a Cummins ISB Medium-Duty Diesel Engine

standard by ASTM International , 07/01/2025

Publisher: ASTM

File Format: PDF

$49.00$99.00


1.1This test method, commonly referred to as the Cummins ISB Viscosity Test, covers the utilization of a 5.9 L diesel engine equipped with exhaust gas recirculation and is used to evaluate oil performance with regard to soot induced viscosity increase.
1.2The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.2.1Exceptions-SI units are provided for all parameters except where there is no direct equivalent such as the units for screw threads, National Pipe Threads/diameters, tubing size, or where there is a sole source of supply equipment specification.
1.2.2See also A7.1 for clarification; it does not supersede 1.2 and 1.2.1.
1.3This 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. See Annex A1 for general safety precautions.
1.4Table of Contents: Section Scope 1 Referenced Documents 2 Terminology 3 Summary of Test Method 4 Significance and Use 5 Apparatus 6 Engine Fluids and Cleaning Solvents 7 Preparation of Apparatus 8 Engine/Stand Calibration and Non-Reference Oil Tests 9 Test Procedure 10 Calculations and Test Validity 11 Report 12 Precision and Bias 13 Annexes    Safety Precautions Annex A1    Intake Air Aftercooler Annex A2    The Cummins ISB Engine Build Parts Kit Annex A3    Sensor Locations and Special Hardware Annex A4    External Oil System Annex A5    Cummins Service Publications Annex A6    Specified Units and Formats Annex A7    Determination of Operational Validity Annex A8    ISB Viscosity 108 (ISBV108) Annex A9
1.5This 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.

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