ASTM D5598-95a
(Test Method)Standard Test Method for Evaluating Unleaded Automotive Spark-Ignition Engine Fuel for Electronic Port Fuel Injector Fouling
Standard Test Method for Evaluating Unleaded Automotive Spark-Ignition Engine Fuel for Electronic Port Fuel Injector Fouling
SCOPE
1.1 This test method covers a vehicle test procedure to evaluate the tendency of an unleaded spark-ignition engine fuel to foul electronic port fuel injectors (PFI).
1.2 The test method is applicable to unleaded spark-ignition engine fuels which may contain antioxidants, corrosion inhibitors, metal deactivators, dyes, deposit control additives, and oxygenates.
1.3 The values stated in SI units are to be regarded as the standard. The values in parentheses are provided for information only.
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. Specific precautionary statements are given throughout this test method.
Note 1—If there is any doubt as to the latest edition of Test Method D5598, contact ASTM Headquarters. Other properties of significance to spark-ignition engine fuel are described in Specification D4814.
General Information
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or
withdrawn. Contact ASTM International (www.astm.org) for the latest information.
Designation: D 5598 – 95a An American National Standard
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Method for
Evaluating Unleaded Automotive Spark-Ignition Engine Fuel
1
for Electronic Port Fuel Injector Fouling
This standard is issued under the fixed designation D 5598; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
This test method is based on a test procedure developed by the Coordinating Research Council
(CRC) and maintains as much commonality as possible with the original test. A similar test method
is described in the California Air Resource Board (CARB) report, “Test Method for Evaluating Port
Fuel Injector Deposits in Vehicle Engines.”
Driveability problems in PFI automobiles were first reported in 1984. These driveability problems
were caused by deposits in the tips of pintle-type fuel injectors. In response to this problem, the CRC
developed a program to evaluate a method of testing PFI deposit-forming tendencies in gasolines. -h
test cycle consisting of 15 min of operation at 88 kph (55 mph) followed by a 45-min soak period was
used for the program. This test cycle showed statistically significant differences in deposit-forming
tendencies of the test fuels on the vehicles’ fuel injectors. The results of the CRC program are
2 3
discussed in CRC Report No. 565, and SAE Paper 890213.
NOTE 1—If there is any doubt as to the latest edition of Test Method
1. Scope
D 5598, contact ASTM Headquarters. Other properties of significance to
1.1 This test method covers a vehicle test procedure to
spark-ignition engine fuel are described in Specification D 4814.
evaluate the tendency of an unleaded spark-ignition engine fuel
to foul electronic port fuel injectors (PFI). 2. Referenced Documents
1.2 The test method is applicable to unleaded spark-ignition
2.1 ASTM Standards:
engine fuels which may contain antioxidants, corrosion inhibi-
D 235 Specification for Mineral Spirits (Petroleum Spirits)
tors, metal deactivators, dyes, deposit control additives, and 4
(Hydrocarbon Dry Cleaning Solvent)
oxygenates.
D 4814 Specification for Automotive Spark-Ignition Engine
1.3 The values stated in SI units are to be regarded as the 5
Fuel
standard. The values in parentheses are provided for informa-
2.2 ANSI Standard:
tion only. 6
MC 96.1 Temperature Measurement Thermocouples
1.4 This standard does not purport to address all of the
2.3 Other Standards:
safety concerns, if any, associated with its use. It is the
“Test Method for Evaluating Port Fuel Injector (PFI)
responsibility of the user of this standard to establish appro-
Deposits In Vehicle Engines,” State of California—Air
priate safety and health practices and determine the applica-
Resources Board (CARB), Stationary Source Div., March
bility of regulatory limitations prior to use. Specific precau-
1, 1991 (incorporated by reference in California Code of
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tionary statements are given throughout this test method.
Regulations, Title 13, Section 2257).
Title 1—Provisions for Attainment and Maintenance of
National Air Quality Standards, Clean Air Act Amend-
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This test method is under the jurisdiction of ASTM Committee D-2 on
ments of 1990 Public Law 101-549, Nov. 15, 1990.
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
3. Terminology
D02.A on Gasoline and Oxygenated Fuels.
Current edition approved Aug. 15, 1995. Published October 1995. Originally
3.1 Definitions of Terms Specific to This Standard:
published as D 5598 – 94. Last previous edition D 5598 – 95.
2
CRC Report No. 565 “A Program to Evaluate a Vehicle Test Method for Port
4
Fuel Injector Deposit-Forming Tendencies of Unleaded Base Gasolines,” February
Annual Book of ASTM Standards, Vol 06.04.
5
1989. Available from Coordinating Research Council, Inc., 219 Perimeter Ctr.
Annual Book of ASTM Standards, Vol 05.03.
6
Pkwy., Atlanta, GA 30346.
Available from American National Standards Institute, 11 W. 42nd St., 13th
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Tupa, Taniguchi, Benson, “A Vehicle Test Technique for Studying Port Fuel Floor, New York, NY 10036.
7
Injector Deposits—A Coordinating Research Council Program,” Society of Auto- Available from California Air Resources Board, P.O. Box 2815, Sacramento,
motive Engineers (SAE) Technical Paper Series: Paper No. 890213, 1989, Available CA 95812.
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from Society of Automotive Engineers International, 400 Commonwealth Dr., Clean Air Act Amendments of 1990, Available from Superintendent of
Warrendale, PA 15096. Documents, U.S. Go
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