- FINAL -
Phase 2 Reformulated Gasoline Performance Subcommittee
Meeting Summary November 15, 1994
I. Introduction
The performance committee discussed the following key issues
regarding the Phase 2 Reformulated Gasoline performance and
compatibility demonstration efforts:
- Results of Phase 2 Gasoline Test by Federal Express
- On-Road Test Protocol
- Bench Test Program
- Criteria for Identifying Potential Vehicle Problems
- Test Fuel Explosivity
The minutes from the October 4, 1994 meeting were approved
with no changes. Copies of presentations given at the
meeting are enclosed with this summary.
II. Results of Phase 2 Gasoline Test by Federal Express
The Federal Express Clean Fleet Project tested several fuels
over a 2 year period in Southern California. Phase 2
Reformulated Gasoline (RFG) was tested. There were no fuel
related problems from Reformulated Phase 2 Gasoline (RFG).
III. On-Road Test Protocol
Discussion was held regarding the current availability of
vehicles for the test program. ARB staff requested
suggestions of alternative fleets to increase the number of
pre-1985 vehicles and imports. Many of the currently
identified potential fleets have only newer domestic
vehicles and have not committed to participating in the test
program yet.
ARB staff will provide a list of the currently selected
vehicles to subcommittee members for their review.
Additionally, staff has been attempting to collect repair
information for the vehicle population, and staff findings
will be reported at the next meeting.
The vehicle evaluation survey forms have been modified to
reflect the changes suggested by members from the previous
meetings with some additional changes. Visual inspections
of vehicles will still be done on a monthly basis, but the
driveability incidence log will only be used to report
problems, rather than to report on a weekly basis. The
December Revised Test Protocol, enclosed, contains a copy of
the latest forms. These forms also incorporate changes
suggested at this meeting.
Some questions were raised as to how feasible the
specifications for the test fuel were for the fuel blender.
To ease the process in contracting for test fuel,
subcommittee members agreed to allow changing the upper
limit on the T90 specification from 300 to 310 degrees if
310 degrees becomes necessary for practical blending.
Contact: Nelson Chan (916) 327-1510
IV. Bench Test Program
GM will bench test the following five fuels for various
elastomer property changes:
Baseline - RFA
Phase 2 Basic/Vehicle Test Fuel
Phase 2 Ethanol - Blended Test Fuel
Phase 2 Low - Aromatic Test Fuel
ASTM Fuel C - to be used for internal checking of the results
Data from the GM bench tests are expected to be available in
May or June 1995. GM will compare the swell characteristics
of the elastomers and determine whether a problem could be
expected, but they will also provide the results to other
automobile manufacturers for their independent analysis.
Ford Motor Company proposed to bench test six fuels to study
the effects of various lubricity levels. The test will
provide a relative ranking of the fuels for their wear
characteristics and should address mechanical wear issues in
fuel pumps and injectors.
Contact: Gerald Barnes (GM) (313) 556-7723
V. Test Fuel Explosivity
Chevron is testing the flammability of low RVP fuels for
oxygenated and non-oxygenated fuel blends. Testing started
in October 1994 and is expected to be complete near the end
of April 1995.
Enclosures
CBG Program Advisory and Subcommittee Activities