ASTM D6987/D6987M-05 - 1.5.2005
 
1. Scope

1.1 This test method is commonly referred to as the Mack T-10. 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.

1.2 This test method also provides the procedure for running an abbreviated length test, which is commonly referred to as the T-10A. The procedures for the T-10 and T-10A are identical with the exception of the items specifically listed in Annex A8. Additionally, the procedure modifications listed in Annex A8 refer to the corresponding section of the T-10 procedure.

1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

1.4 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 A7 for specific Safety Hazards.

 
2. Referenced Documents

D2709-22

Standard Test Method for Water and Sediment in Middle Distillate Fuels by Centrifuge

E344-26a

Terminology Relating to Thermometry and Hydrometry (Includes all amendments and changes 4/21/2026).

D5185-26

Standard Test Method for Multielement Determination of Used and Unused Lubricating Oils and Base Oils by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES)

D5302-01a

Test Method for Evaluation of Automotive Engine Oils for Inhibition of Deposit Formation and Wear in a Spark-Ignition Internal Combustion Engine Fueled with Gasoline and Operated Under Low-Temperature, Light-Duty Conditions (Withdrawn 2003)

D6078-04

Standard Test Method for Evaluating Lubricity of Diesel Fuels by the Scuffing Load Ball-on-Cylinder Lubricity Evaluator (SLBOCLE)

D6483-04

Standard Test Method for Evaluation of Diesel Engine Oils in T-9 Diesel Engine (Withdrawn 2009)

D6681-23

Standard Test Method for Evaluation of Engine Oils in a High Speed, Single-Cylinder Diesel Engine—Caterpillar 1P Test Procedure

E29-22

Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

E178-21

Standard Practice for Dealing With Outlying Observations

D2500-23

Standard Test Method for Cloud Point of Petroleum Products and Liquid Fuels

D130-26

Standard Test Method for Corrosiveness to Copper from Petroleum Products by Copper Strip Test

D287-22

Standard Test Method for API Gravity of Crude Petroleum and Petroleum Products (Hydrometer/Method)

D664-24

Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration

D976-21e1

Standard Test Method for Calculated Cetane Index of Distillate Fuels (Includes all amendments and changes 2/23/2023).

D613-26

Standard Test Method for Cetane Number of Diesel Fuel Oil

D1319-25

Standard Test Method for Hydrocarbon Types in Liquid Petroleum Products by Fluorescent Indicator Adsorption

D2274-14(2019)

Standard Test Method for Oxidation Stability of Distillate Fuel Oil (Accelerated Method)

D2622-26

Standard Test Method for Sulfur in Petroleum Products by Wavelength Dispersive X-ray Fluorescence Spectrometry

D3338-08

Standard Test Method for Estimation of Net Heat of Combustion of Aviation Fuels

D4485-24

Standard Specification for Performance of Active API Service Category Engine Oils

D86-23ae2

Standard Test Method for Distillation of Petroleum Products and Liquid Fuels at Atmospheric Pressure (Includes all amendments and changes 11/4/2024).

D93-26

Standard Test Methods for Flash Point by Pensky-Martens Closed Cup Tester

D4739-26

Standard Test Method for Base Number Determination by Potentiometric Hydrochloric Acid Titration

D5186-24

Standard Test Method for Determination of the Aromatic Content and Polynuclear Aromatic Content of Diesel Fuels By Supercritical Fluid Chromatography

D5844-98

Standard Test Method for Evaluation of Automotive Engine Oils for Inhibition of Rusting (Sequence IID) (Withdrawn 2003)

D97-17b(2022)

Standard Test Method for Pour Point of Petroleum Products (Includes all amendments and changes 11/29/2022).

D129-18

Standard Test Method for Sulfur in Petroleum Products (General High Pressure Decomposition Device Method) (Withdrawn 2023)

D235-22

Standard Specification for Mineral Spirits (Petroleum Spirits) (Hydrocarbon Dry Cleaning Solvent)

D445-26

Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)

D482-25

Standard Test Method for Ash from Petroleum Products

D524-15(2025)e1

Standard Test Method for Ramsbottom Carbon Residue of Petroleum Products (Includes all amendments and changes 8/11/2025).

D5967-21

Standard Test Method for Evaluation of Diesel Engine Oils in T-8 Diesel Engine

D4052-22

Standard Test Method for Density, Relative Density, and API Gravity of Liquids by Digital Density Meter