LONG-TERM METHANOL VEHICLE TEST PROGRAM. FINAL SUBCONTRACT REPORT, 1 NOVEMBER 1992 - 1 FEBRUARY 1995
Work was performed to determine effects of methanol fuel on engine performance and exhaust emissions during long-term use in a 1988 Chevrolet Corsica. Engine wear, gasket performance, fuel economy, emissions level, oil consumption, and overall vehicle performance were monitored over 22,000 miles (35,400 km). Baselines were established at the beginning for comparison: engine was disassembled, bearing/ring clearances and cam profiles were measured. Higher flow rate fuel injectors from AC Rochester were installed and the computer system calibrated for M11 fuel. The vehicle durability test increased oil consumption by 26% under cold-start conditions, 9% under hot start. Oil consumption under hot start was higher than under cold start by as much as 56%; effect of component temperatures on oil viscosity appears to be the cause. It is recommended that oil consumption of a gasoline-fueled vehicle be measured in order to normalize the effect of methanol operation on oil consumption, and to study the effect of steady-state and transient conditions on oil consumption.
- Sponsored by Department of Energy, Washington, DC.
National Renewable Energy Laboratory1617 Cole Boulevard
Golden, CO United States 80401
- Jones, J C
- Maxwell, T T
- Publication Date: 1995-9
- Pagination: 90 p.
- TRT Terms: Alcohol fuels; Cold starts (Driving); Engine performance; Fuel conservation; Fuel consumption; Methanol; Pollutants; Vehicle performance
- Uncontrolled Terms: Methanol as fuel
- Old TRIS Terms: Cold start; Emission rates; Oil consumption
- Subject Areas: Energy; Highways; Vehicles and Equipment; I95: Vehicle Inspection;
- Accession Number: 00721742
- Record Type: Publication
- Report/Paper Numbers: NREL-TP-425-7633
- Files: TRIS
- Created Date: Jun 6 1996 12:00AM