ASTM D6618-23

Standard Test Method for Evaluation of Engine Oils in Diesel Four-Stroke Cycle Supercharged 1M-PC Single Cylinder Oil Test Engine

ASTM International, 07/01/2023

Publisher: ASTM

File Format: PDF

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Description

Published:01/07/2023

Pages:55

File Size:1 file , 3.2 MB

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1.1 This test method covers a four-stroke cycle diesel engine test procedure for evaluating engine oils for certain high-temperature performance characteristics, particularly ring sticking, ring and cylinder wear, and accumulation of piston deposits. Such oils include both single viscosity SAE grade and multiviscosity SAE grade oils used in diesel engines. It is commonly known as the 1M-PC test (PC for Pre-Chamber) and is used in several API oil categories, notably the CF and CF-2 and the military category described in MIL-PRF-2104 (see Note 1).

Note 1: Companion test methods used to evaluate other engine oil performance characteristics for API oil categories CF and CF-2 are discussed in SAE J304. The companion tests used by the military can be found in MIL-PRF-2104.

1.2 The values stated in SI units are to be regarded as standard.

1.2.1 Exception-The values in parentheses are provided for information only.

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.4 This test method is arranged as follows:

TABLE OF CONTENTS Scope 1 Reference Documents 2 Terminology 3 Summary of Test Method 4 Significance and Use 5 Apparatus 6 Test Engine 6.1 Engine Accessories 6.2 - 6.14 Engine Oil System 6.15 Cooling System 6.16 Fuel System 6.17 Intake Air System 6.18 Exhaust System 6.19 Blowby Meter 6.20 Thermocouples 6.21 Parts 6.22 Instrumentation 6.23 Crankcase Paint 6.24 Reagents and Materials 7 Fuel 7.1 Test Oil 7.2 Engine Coolant 7.3 Cleaning Materials 7.4 Safety 8 Preparation of Apparatus 9 Supplementary Service Information 9.1 General Engine Inspection 9.2 Intake Air System 9.3 Cooling System 9.4 Engine Cooling System Cleaning 9.5 Instrumentation Calibration Requirements 9.6 Engine Crankcase Cleaning 9.7 Additional Oil Filter 9.8 Flushing Procedure Components 9.9 Flushing Procedures 9.10 Piston Cleaning Preparation 9.11 Cylinder Head 9.12 Fuel Nozzle 9.13 Measurement 9.14 Procedure 10 Engine Break-in 10.1 Pre-Test Preparations 10.2 Warm-up Procedure 10.3 Operating Conditions 10.4 Periodic Measurements 10.5 Engine Oil Level 10.6 Oil Addition Procedure 10.7 Cool-Down Procedure 10.8 Shutdowns 10.9 Fuel System 10.10 Brake Specific Oil Consumption (BSOC) Calculation 10.11 Inspection 11 Preparation 11.1 Inspection 11.2 Rater Training 11.3 Referee Ratings 11.4 Calibration of Test Method 12 Requirements 12.1 Reference Oils 12.2 Test Numbering 12.3 Definition of a Test 12.4 New Laboratories and New Test Stands 12.5 Frequency of Calibration Tests 12.6 Specified Test Parameters 12.10 Acceptance of Calibration Tests 12.11 Failing Reference Oil Calibration Tests 12.12 Non-Standard Tests 12.13 Severity Adjustments and Control Charting 12.14 Test Reporting 12.15 Reporting Reference Results 12.16 Analysis of Reference Oils 12.17 Precision and Bias 13 Precision 13.1 Bias 13.2 Keywords 14 ANNEXES Figures and Schematics Annex A1 Report Forms Annex A2 Test Fuel Information Annex A3 APPENDIXES Humidity Correction Factors

ASTM D6618-23

Standard Test Method for Evaluation of Engine Oils in Diesel Four-Stroke Cycle Supercharged 1M-PC Single Cylinder Oil Test Engine

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