Program to evaluate a vehicle test method for determining the intake valve deposit forming tendencies of unleaded gasolines

Technical Report · Thu Jul 01 00:00:00 EDT 1993

OSTI ID:5732094

The 1992 model Ford 2.3 liter dual-plug engine was selected for the purpose of developing an industry accepted intake valve deposit test standard. Candidate engine selection criteria and test protocol are discussed. Three 1991 domestic models were tested using the Southwest Research Institute/BMW North America on-the-road driving cycle. A composite blend of five non-additized, unleaded regular grade fuels without oxygenates was used for all tests. A test matrix was designed to assess both intake valve deposit tendency and sensitivity to deposit control additive for each engine. A 1985 BMW 318i was also tested as a reference in order to choose a single suitable additive. Eight additive packages were submitted for testing by suppliers, of which two were blindly chosen and screened for testing in the BMW vehicles. Of these two additives, one additive was chosen for further testing in the three candidate domestic vehicles.

• Research Organization: Coordinating Research Council, Inc., Atlanta, GA (United States)
• OSTI ID: 5732094
• Report Number(s): AD-A-269189/7/XAB; CRC-589
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
FUEL ADDITIVES
RESEARCH PROGRAMS
AUTOMOTIVE FUELS
DEPOSITION
GASOLINE
INTERNAL COMBUSTION ENGINES
MIXTURES
NORTH AMERICA
OPTIMAL CONTROL
SAFETY STANDARDS
STANDARDS
VALVES
VEHICLES
ADDITIVES
CONTROL
CONTROL EQUIPMENT
DISPERSIONS
ENGINES
EQUIPMENT
FLOW REGULATORS
FUELS
HEAT ENGINES
LIQUID FUELS
PETROLEUM PRODUCTS
330705* - Emission Control- Particulates