ASTM D6201-01 - 10.11.2001
 
1. Scope

1.1 This test method coves an engine dynamometer test procedure for evaluation of intake valve deposit formation of unleaded spark-ignition engine fuels. This test uses a Ford Ranger 2.3 L four-cylinder engine. The following details the procedure, hardware, and operations used for this test.

1.2 The ASTM Test Monitoring Center (TMC) is responsible for engine test stand certification as well as issuance of information letters after test method modifications are approved by Subcommittee D02.A and Committee D02. Users of this test method shall request copies of recent information letters from the TMC to ensure proper conduct of the test method.

1.3 The values stated in SI units are to be regarded as the standard. Approximate inch-pound units are shown in parenthesis for information.

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 applicability of regulatory limitations prior to use. Specific precautionary statements are given throughout this test method.

1.4 This test method is arranged as follows:

SubjectSection
Scope1
Referenced Documents2
Terminology3
Summary of Test Method4
Significance and Use5
Apparatus6
Laboratory Facilities6.1
Test Stand Laboratory Equipment6.2
Test Engine Hardware6.3
Special Measurement and Assembly Equipment6.4
Reagents and Materials7
Fuel7.1
Engine Oil and Assembly Lubricant7.2
Engine Coolant7.3
Solvents and Cleaners7.4
Fuel Injector Test Fluid7.5
Valve Lapping Compound7.6
Crushed Walnut Shells7.7
Desiccant7.8
Hazards8
Specific Hazards8.1
Reference Fuel9
Reference Base Fuel Batch Approval Process9.1
Fuel Batch Analyses9.2
Fuel Batch Shipment and Storage9.3
Preparation of Apparatus10
Test Stand Preparation10.1
Engine Block Preparation10.2
Preparation of Miscellaneous Engine Components10.3
Cylinder Head Preparation10.4
Cylinder Head Assembly10.5
Cylinder Head Installation10.6
Final Engine Assembly10.7
Calibration11
Test Stand Calibration11.1
Instrumentation Calibration11.2
Test Procedure12
Pretest Procedure12.1
Engine Operating Procedure12.2
Periodic Measurements and Functions12.3
End of Test Procedures12.4
Determination of Test Results13
Post-test Intake Valve Weighing Procedure13.1
Photographs of Parts - General13.2
Induction System Rating13.3
Determination of Test Validity - Engine Conformance13.4
Final Test Report14
Standard Report14.1
Data Acquisition Summary Report14.2
Photographs of Specific Parts14.3
Precision and Bias15
Precision15.1
Bias15.2
Keywords16
Annexes
Detailed Specifications and Photographs of ApparatusAnnex A1
Engine Part Number ListingAnnex A2

 
2. Referenced Documents

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)

D287-22

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

D381-25

Standard Test Method for Gum Content in Fuels by Jet Evaporation

D525-12a(2025)

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

D873-22

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

D1266-18

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

D1298-24

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

D1319-26

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

J254

Instrumentation and Techniques for Exhaust Gas Emissions Measurement

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)

D2427-06

Standard Test Method for Determination of C2 through C5 Hydrocarbons in Gasolines by Gas Chromatography

D2622-26

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

E1064-24

Standard Test Method for Water in Organic Liquids by Coulometric Karl Fischer Titration

D5482-26

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

E203-24

Standard Test Method for Water Using Volumetric Karl Fischer Titration

MC96.1

Temperature Measurement-Thermocouples

CRC Manual 16,

Carburetor and Induction System Rating Manual

D1744-13

Standard Test Method for Determination of Water in Liquid Petroleum Products by Karl Fischer Reagent (Withdrawn 2016)

D3237-22

Standard Test Method for Lead in Gasoline by Atomic Absorption Spectroscopy

D4057-22

Standard Practice for Manual Sampling of Petroleum and Petroleum Products

D4294-24

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

D4814-26

Standard Specification for Automotive Spark-Ignition Engine Fuel

D4953-26

Standard Test Method for Vapor Pressure of Gasoline and Gasoline-Oxygenate Blends (Dry Method)

D5059-26

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

D5190-07

Standard Test Method for Vapor Pressure of Petroleum Products (Automatic Method) (Withdrawn 2012)

D5191-22

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