ASTM D 6984:2018

1.1 This test method covers an engine test procedure for evaluating automotive engine oils for certain high-temperature performance characteristics, including oil thickening, varnish deposition, oil consumption, as well as engine wear. Such oils include both single viscosity grade and multiviscosity grade oils that are used in both spark-ignition, gasoline-fueled engines, as well as in diesel engines. Note 1: Companion test methods used to evaluate engine oil performance for specification requirements are discussed in SAE J304. 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- The values stated in inches for ring gap measurements are to be regarded as standard, and where there is no direct SI equivalent such as screw threads, National Pipe Threads/diameters, tubing size, or single source supply equipment specifications. 1.3 This test method is arranged as follows: Subject Section Scope 1 Referenced Documents 2 Terminology 3 Summary of Test Method 4 Significance and Use 5 Apparatus 6 Laboratory 6.1 Drawings 6.2 Specified Equipment 6.3 Test Engine 6.4 Engine Parts 6.4.1 Engine Speed and Torque Control 6.5 Sequence IIIF Fluid Conditioning Module 6.6 Engine Cooling System 6.6.1 Flushing Tank 6.7 Coolant Mixing Tank 6.8 Condenser Cooling Systems 6.9 Engine Oil-Cooling System 6.10 Fuel System 6.11 Induction Air Supply Humidity, Temperature, and Pressure 6.12 Temperature Measurement 6.13 Thermocouple Location 6.13.1 Air-to-Fuel Ratio Determination 6.14 Injector Flow Testing 6.14.1 Exhaust and Exhaust Back Pressure Systems 6.15 Blowby Flow Rate Measurement 6.16 Pressure Measurement and Pressure Sensor Location 6.17 Reagents and Materials 7 Test Fuel 7.1 Engine and Condenser Coolant 7.2 Coolant Additive 7.3 Coolant Preparation 7.4 Pre-Test Cleaning Materials 7.5 Sealing and Anti-seize Compounds 7.6 Test Oil Sample Requirements 8 Preparation of Apparatus 9 Condenser Cleaning 9.1 Intake Manifold Cleaning 9.3 Cleaning of Engine Parts (other than the block and heads) 9.4 Engine Block Cleaning 9.5 Cylinder Head Cleaning 9.6 Engine Build-up Procedure 9.7 General Information 9.7.1 Special Parts 9.7.2 Hardware Information 9.7.3 Fastener Torque Specifications and Torquing Procedures 9.7.4 Parts Replacement ...

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