Effects of lead level on emissions and valve seat recession: Final report
This report describes testing operations to determine the effect of using unleaded gasoline in engines designed for leaded gasoline. Three tractor engines, one combine engine, one light-duty farm truck engine, and one heavy-duty truck engine were tested using leaded fuel (1.1 gm/gas), unleaded fuel, and low lead fuel (0.10 gm/gas). Results show the higher speed engines experienced valve seat recession using unleaded fuel while lower speed engines did not show valve recession using the unleaded fuel. No valve seat recession occurred using the 1.1 gm/gas leaded fuel. The use of .10 gm/gal lead reduced valve seat recession compared to unleaded fuel, but did not eliminate recession in all cases. 20 tables.
- Research Organization:
- National Inst. for Petroleum and Energy Research, Bartlesville, OK (USA)
- DOE Contract Number:
- FC22-83FE60149
- OSTI ID:
- 6353004
- Report Number(s):
- NIPER-205; ON: DE87001253
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
023000* -- Petroleum-- Properties & Composition
33 ADVANCED PROPULSION SYSTEMS
330100 -- Internal Combustion Engines
330800 -- Emission Control-- Alternative Fuels
ADDITIVES
CHEMICAL REACTIONS
COMBUSTION
COMPARATIVE EVALUATIONS
CONTROL EQUIPMENT
DATA
ENGINES
EQUIPMENT
EXPERIMENTAL DATA
FLOW REGULATORS
FUEL ADDITIVES
FUEL SUBSTITUTION
FUELS
GASOLINE
HEAT ENGINES
INFORMATION
INTERNAL COMBUSTION ENGINES
LIQUID FUELS
NUMERICAL DATA
OXIDATION
PERFORMANCE TESTING
PETROLEUM PRODUCTS
TESTING
THERMOCHEMICAL PROCESSES
UNLEADED GASOLINE
VALVES
WEAR
023000* -- Petroleum-- Properties & Composition
33 ADVANCED PROPULSION SYSTEMS
330100 -- Internal Combustion Engines
330800 -- Emission Control-- Alternative Fuels
ADDITIVES
CHEMICAL REACTIONS
COMBUSTION
COMPARATIVE EVALUATIONS
CONTROL EQUIPMENT
DATA
ENGINES
EQUIPMENT
EXPERIMENTAL DATA
FLOW REGULATORS
FUEL ADDITIVES
FUEL SUBSTITUTION
FUELS
GASOLINE
HEAT ENGINES
INFORMATION
INTERNAL COMBUSTION ENGINES
LIQUID FUELS
NUMERICAL DATA
OXIDATION
PERFORMANCE TESTING
PETROLEUM PRODUCTS
TESTING
THERMOCHEMICAL PROCESSES
UNLEADED GASOLINE
VALVES
WEAR