API 4667 : 1997

Table of Contents

Executive Summary
1 Introduction
2 Test vehicles, catalysts and fuels
    Test vehicles
    Test catalysts
    Test fuels
3 Test design and procedures
    Measurements on the 1993 Honda Civic VX (TLEV)
    Measurements on the 1996 Honda Civic LX (LEV)
4 Test results
5 Data analysis and discussion
6 Summary
    References
Appendix A: Catalytic converter aging with two fuel sulfur levels
Appendix B: Detailed test protocol
Appendix C: Oxygen storage capacity measurements with the 1996
            vehicle
List of Figures
4-1 Cold start temperatures, test ID H9703031
4-2 Exhaust gas oxygen sensor voltages, test ID H9703031
5-1 Honda TLEV FTP emissions
5-2 Effect of Sulfur on Honda TLEV emissions
5-3 Comparison of Honda TLEV Sulfur response in API and CRC programs
5-4 Honda TLEV oxygen storage measurements
List of Tables
2-1 Description of test vehicles
2-2 Test catalysts
2-3 Test fuel analyses
3-1 Test sequence for 1993 Honda Civic VX
3-2 Test sequence for 1996 Honda Civic LX
4-1 1993 Honda Civic VX tailpipe emissions
4-2 1993 Honda Civic VX modal bag equivalents
4-3 1996 Honda Civic LX oxygen storage measurements
5-1 Mean emissions and 95% confidence intervals for Honda TLEV
5-2 Reduction in Honda TLEV FTP emission in switching from high to
    low sulfur fuel (600--> 35PPM) and comparison to results from
    PERF TLEV program

Abstract

Provides information and the results of a test program conducted to measure the effect of changing fuel sulfur content on the exhaust emissions of a 1993 Honda Civic VX certified to meet TLEV (Transitional Low Emission Vehicle) standards in California.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	American Petroleum Institute
Pages
ISBN