API 4542 : 1992

Executive Summary
PART I
"Temperature, Reid Vapor Pressure and Gasohol Effects on
Running Losses"
Introduction
Fuel Tank Temperature Profile
Interaction Between Fuel Temperature and Volatility
Running Losses from Ethanol Blends
The Effect of Weathering on Running Loss Emissions
LIST OF TABLES
Table 1. True Vapor Pressure (Vehicle 103)
Table 2. True Vapor Pressure (Vehicle 104)
Table 3. True Vapor Pressure (Vehicle 105)
Table 4. True Vapor Pressure (vehicle 106)
Table 5. Running Loss Emissions at Similar Temperatures
           in Different Profiles (Vehicle 104)
LIST OF FIGURES
Figure 1. Running Loss vs. Calculated TVP
Figure 2. Cumulative Running Loss vs. Calculated TVP
Figure 3. Running Loss vs. Calculated TVP (Vehicle 103)
Figure 4. Running Loss vs. Calculated TVP (Vehicle 104)
Figure 5. Running Loss vs. Calculated TVP (Vehicle 105)
Figure 6. Running Loss vs. Calculated TVP (Vehicle 106)
Figure 7. Running Loss vs. Temperature (Vehicle 103)
           HC Fuels and Ethanol Blends
Figure 8. Running Loss vs. Temperature (Vehicle 104)
           HC Fuels and Ethanol Blends
Figure 9. Running Loss vs. Temperature (Vehicle 105)
           HC Fuels and Ethanol Blends
Figure 10. Running Loss vs. Temperature (Vehicle 106)
           HC Fuels and Ethanol Blends
Figure 11. Running Loss vs. Temperature (Vehicle 103)
           Weathered Fuels
Figure 12. Running Loss vs. Temperature (Vehicle 104)
           Weathered Fuels
Figure 13. Running Loss vs. Temperature (Vehicle 105)
           Weathered Fuels
Figure 14. Running Loss vs. Temperature (Vehicle 106)
           Weathered Fuels
PART II "Final Report from Automotive Testing Laboratories,
         Inc."
Introduction
Test Fuels
Test Vehicles
Fuel Temperatures
Vehicle Preparation and Test Procedures
Test Sequence
Results
LIST OF TABLES
Table 1. Base Fuel Specifications
Table 2. Test Fleet Description
Table 3. Test Sequence
Table 4. Comparison of Fuel Temperature Profiles
Table 5. Total Running Losses versus RVP and Test Temperature
Table 6. Matched RVP versus Splash Blend Gasohol at 95
           degrees F
Table 7. Effect of RVP Changes During Drivedown
Table A-1 Temperature, RVP and Gasohol Effects on Running Losses
           (Vehicle 103)
Table A-2 Temperature, RVP and Gasohol Effects on Running Losses
           (Vehicle 104)
Table A-3 Temperature, RVP and Gasohol Effects on Running Losses
           (Vehicle 105)
Table A-4 Temperature, RVP and Gasohol Effects on Running Losses
           (Vehicle 106)
LIST OF FIGURES
Figure 1. Cannister Normalization and Running Loss Sequence
Figure 2. Total Running Losses versus RVP and Temperature