ASTM D6593-06 - 1.5.2006
 
1. Scope

1.1 This test method covers and is commonly referred to as the Sequence VG test, and it has been correlated with vehicles used in stop-and-go service prior to 1996, particularly with regard to sludge and varnish formation. It is one of the test methods required to evaluate oils intended to satisfy the API SL performance category.

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

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 , , , , , , , , and .

1.3 A Table of Contents follows:

 
2. Referenced Documents

D4175-24e2

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

D4057-22

Standard Practice for Manual Sampling of Petroleum and Petroleum Products

D3525-20(2026)e1

Standard Test Method for Gasoline Fuel Dilution in Used Gasoline Engine Oils by Wide-Bore Capillary Gas Chromatography (Includes all amendments and changes 4/16/2026).

D3237-22

Standard Test Method for Lead in Gasoline by Atomic Absorption Spectroscopy

D2789-95(2000)e1

Standard Test Method for Hydrocarbon Types in Low Olefinic Gasoline by Mass Spectrometry

D2622-26

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

D1298-24

Standard Test Method for Density, Relative Density, or API Gravity of Crude Petroleum and Liquid Petroleum Products by Hydrometer Method

D1266-18

Standard Test Method for Sulfur in Petroleum Products (Lamp Method) (Withdrawn 2025)

D873-22

Standard Test Method for Oxidation Stability of Aviation Fuels (Potential Residue Method)

D525-12a(2025)

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

D381-25

Standard Test Method for Gum Content in Fuels by Jet Evaporation

D86-23ae2

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

D445-26

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

D323-26

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

D235-22

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

D287-22

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

ASTM Deposit Rating Manual 20

ANSI MC96.1

Temperature Measurement-Thermocouples

G40-25a

Standard Terminology Relating to Wear and Erosion (Includes all amendments and changes 12/8/2025).

E29-22

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

D7422-25

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

D6304-25

Standard Test Method for Determination of Water in Petroleum Products, Lubricating Oils, and Additives by Coulometric Karl Fischer Titration

D5862-09

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

D4294-24

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

D4485-24

Standard Specification for Performance of Active API Service Category Engine Oils

D5059-26

Standard Test Methods for Lead and Manganese in Gasoline by X-Ray Fluorescence Spectroscopy

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)