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This test method describes a two-stroke cycle diesel engine test procedure for evaluating engine oils for certain high-temperature performance characteristics, particularly cylinder liner scuffing and piston ring face distress, but also including port plugging, slipper bushing, and piston skirt distress. Such oils include both single viscosity SAE grade and multiviscosity SAE grade oils used in diesel engines. It is commonly known as the 6V92TA test.
Formerly under the jurisdiction of Committee D02 on Petroleum Products and Lubricants, this test method was withdrawn without replacement in October 2009, because the necessary equipment to conduct the procedure is no longer available.
1.1 This test method describes a two-stroke cycle diesel engine test procedure for evaluating engine oils for certain high-temperature performance characteristics, particularly cylinder liner scuffing and piston ring face distress, but also including port plugging, slipper bushing, and piston skirt distress. Such oils include both single viscosity SAE grade and multiviscosity SAE grade oils used in diesel engines. It is commonly known as the 6V92TA test. (See Note 1.)
Note 1—Companion test methods used to evaluate other engine oil performance characteristics for specification requirements are discussed in Engine Oil tests—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—Where there is no direct SI equivalent, such as screw threads, National Pipe Threads/diameters, tubing size, or single source supply equipment specifications. Also, many of the figures still show inch-pound units.
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. Specific hazard statements are given in Sections 8, 10, 13, and 14.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4.1 Exceptions—Where there is no direct SI equivalent such as screw threads, National Pipe Threads/diameters, tubing size, or single source supply equipment specifications.
1.5 This test method is arranged as follows:
|Summary of Test Method||4|
|Significance and Use||5|
|Apparatus—Laboratory and Test Stand Requirements||7|
|Special Cleaning Procedures||8.3|
|Periodic Maintenance Inspections||8.4|
|Engine Build-up Procedures||8.5|
|Reagents and Materials||10|
|Sealing and Anti-seize Compounds||10.4|
|Laboratory and Test Stand Calibration||12|
|Engine Operating Procedure||13.2|
|Periodic Measurements and Functions||13.3|
|Diagnostic Data Review||13.4|
|End of Test Procedure||13.5|
|Interpretation of Test Results||14|
|Parts Rating Area—Environment||14.1|
|Piston Pin Slipper Bushing||14.4|
|Rocker Arm Bushing||14.6|
|Preparation of Report||15|
|Electronic Transmission of Test Results||15.4|
|Precision and Bias||17|
|ASTM Test Monitoring Center||Annex A1|
|Detailed Specifications and Drawings of Apparatus||Annex A2|
|Engine Part Number Listing||Annex A3|
|Test Fuel Analysis||A3.1|
|Report Forms||Annex A5|
|Data Dictionary||Annex A6|
|Oil Producer's Affidavit||Appendix X1|
|Engine Build-up Forms||Appendix X2|
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D86 Test Method for Distillation of Petroleum Products at Atmospheric Pressure
D92 Test Method for Flash and Fire Points by Cleveland Open Cup Tester
D240 Test Method for Heat of Combustion of Liquid Hydrocarbon Fuels by Bomb Calorimeter
D287 Test Method for API Gravity of Crude Petroleum and Petroleum Products (Hydrometer Method)
D445 Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)
D482 Test Method for Ash from Petroleum Products
D613 Test Method for Cetane Number of Diesel Fuel Oil
D2622 Test Method for Sulfur in Petroleum Products by Wavelength Dispersive X-ray Fluorescence Spectrometry
D2709 Test Method for Water and Sediment in Middle Distillate Fuels by Centrifuge
D2887 Test Method for Boiling Range Distribution of Petroleum Fractions by Gas Chromatography
D4175 Terminology Relating to Petroleum, Petroleum Products, and Lubricants
D4485 Specification for Performance of Engine Oils
D4739 Test Method for Base Number Determination by Potentiometric Hydrochloric Acid Titration
D4863 Test Method for Determination of Lubricity of Two-Stroke-Cycle Gasoline Engine Lubricants
D5185 Test Method for Determination of Additive Elements, Wear Metals, and Contaminants in Used Lubricating Oils and Determination of Selected Elements in Base Oils by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES)
G40 Terminology Relating to Wear and Erosion
SAE StandardsSAEJ304 Engine Oil Tests
Military SpecificationsMIL-L-2104 Lubricating Oil, Internal Combustion Engine, Combat/Tactical Service