ASTM D7320-06 - 1.12.2006
 
1. Scope

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 shall be regarded as the standard. The values given in parentheses are provided for information purposes only. The only exception is where there is no direct SI equivalent such as screw threads, national pipe threads/diameters, and tubing size.

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 warning statements are provided in 6.14.1.1 and 7.1.

1.3 This test method is arranged as follows:

 
2. Referenced Documents

D445-24

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

D3244-24

Standard Practice for Utilization of Test Data to Determine Conformance with Specifications

D3338-08

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

D525-12a(2025)

Standard Test Method for Oxidation Stability of Gasoline (Induction Period Method) (Includes all amendments and changes 12/24/2025).

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)

D5191-22

Standard Test Method for Vapor Pressure of Petroleum Products and Liquid Fuels (Mini Method)

D5293-25

Standard Test Method for Apparent Viscosity of Engine Oils and Base Stocks Between –10 °C and –35 °C Using Cold-Cranking Simulator

D5452-23

Standard Test Method for Particulate Contamination in Aviation Fuels by Laboratory Filtration

D5453-25

Standard Test Method for Determination of Total Sulfur in Light Hydrocarbons, Spark Ignition Engine Fuel, Diesel Engine Fuel, and Engine Oil by Ultraviolet Fluorescence

D5862-09

Standard Test Method for Evaluation of Engine Oils in Two-Stroke Cycle Turbo-Supercharged 6V92TA Diesel Engine (Withdrawn 2009)

D6593-18e1

Standard Test Method for Evaluation of Automotive Engine Oils for Inhibition of Deposit Formation in a Spark-Ignition Internal Combustion Engine Fueled with Gasoline and Operated Under Low-Temperature, Light-Duty Conditions (Includes all amendments and changes 6/22/2022).

D86-23ae2

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

D235-22

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

D240-25

Standard Test Method for Heat of Combustion of Liquid Hydrocarbon Fuels by Bomb Calorimeter

D130-26

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

D323-26

Standard Test Method for Vapor Pressure of Petroleum Products (Reid Method)

D381-25

Standard Test Method for Gum Content in Fuels by Jet Evaporation

D6750-23

Standard Test Methods for Evaluation of Engine Oils in a High-Speed, Single-Cylinder Diesel Engine—1K Procedure (0.4 % Fuel Sulfur) and 1N Procedure (0.04 % Fuel Sulfur)

D6984-18e1

Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence IIIF, Spark-Ignition Engine (Includes all amendments and changes 6/23/2022).

D7422-25

Standard Test Method for Evaluation of Diesel Engine Oils in T-12 Exhaust Gas Recirculation Diesel Engine

E29-22

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

E191-64(1999)e1

Standard Specification for Apparatus For Microdetermination of Carbon and Hydrogen in Organic and Organo-Metallic Compounds

E608/E608M-24

Standard Specification for Mineral-Insulated, Metal-Sheathed Base Metal Thermocouples

E1119-23

Standard Specification for Industrial Grade Ethylene Glycol

Lubricating Oil, Internal Combustion Engine, Tactical Service

IEEE/ASTM SI 10

Standard for Use of the International System of Units (SI): The Modern Metric System

D3343-22

Standard Test Method for Estimation of Hydrogen Content of Aviation Fuels

D4052-22

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

D4175-24e2

Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants (Includes all amendments and changes 6/9/2026).

D4485-24

Standard Specification for Performance of Active API Service Category Engine Oils

D4684-20a

Standard Test Method for Determination of Yield Stress and Apparent Viscosity of Engine Oils at Low Temperature (Includes all amendments and changes 11/17/2020).

D4815-22

Standard Test Method for Determination of MTBE, ETBE, TAME, DIPE, tertiary-Amyl Alcohol and C1 to C4 Alcohols in Gasoline by Gas Chromatography

D1319-25

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

D2699-25

Standard Test Method for Research Octane Number of Spark-Ignition Engine Fuel

D2700-26a

Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel (Includes all amendments and changes 6/12/2026).

D3231-25

Standard Test Method for Phosphorus in Gasoline

D3237-22

Standard Test Method for Lead in Gasoline by Atomic Absorption Spectroscopy