Comparison of fuel economy and emissions for diesel and gasoline powered taxicabs. Final report, June 1976-April 1979
The objective of this study was to assess potential improvements in fuel economy and exhaust emissions by dieselization of the taxi fleet in a large urban area. Sixty-six diesel powered taxicabs and an equal number of gasoline powered cabs were operated for 120,000 miles each in three taxicab fleets in New York City. Identical cabs were powered with either 198 CID diesel engines or 225 CID gasoline engines. Test results from all cabs were used to determine fuel economy and exhaust emissions. On the road, the diesel cabs had 50 percent better fuel economy than the gasoline cabs; the diesel exhaust emissions (HC, CO, NOx) were lower than the gasoline exhaust emissions over the life of the test. Emission from the diesels did not appreciably degrade with vehicle age; emission from the gasoline cabs increased appreciably.
- Research Organization:
- Department of Transportation, Cambridge, MA (USA). Transportation Systems Center
- OSTI ID:
- 5505017
- Report Number(s):
- PB-298609
- Country of Publication:
- United States
- Language:
- English
Similar Records
Emission Characteristics of a Diesel Engine Operating with In-Cylinder Gasoline and Diesel Fuel Blending
Comparison of gasoline and diesel automobile fuel economy as seen by the consumer
Related Subjects
330100* -- Internal Combustion Engines
330700 -- Advanced Propulsion Systems-- Emission Control
AIR POLLUTION
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
DIESEL ENGINES
ENGINES
EXHAUST GASES
FUEL ECONOMY
GASEOUS WASTES
INTERNAL COMBUSTION ENGINES
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
POLLUTION
URBAN AREAS
WASTES