Standard: API 4005

THE EFFECT OF FUEL VOLATILITY VARIATIONS ON THE PERFORMANCE OF AUTOMOBILIES OVER A RANGE OF TEMPERATURES

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Scope:

INTRODUCTION

The reduction of evaporative emissions from automotive carburetor bowls and fuel tanks is an important step in controlling air pollution. One possibility for limiting such losses is lowering of fuel front-end volatility. This would be expected to be detrimental to vehicle cold weather performance in the areas of starting and warm-up. Consequently, this program was carried out to assess (1) the effect of reducing front-end volatility on start-up and warm-up in current cars, (2) the minimum volatility for satisfactory start-up and warm-up performance over a wide temperature range, (3) the variation in start-up and warm-up performance for two groups of current cars, one with and the other without emission control systems, and (4) the volatility limits which are imposed by normally encountered weaknesses of spark plugs, battery and other engine components.

Organization: American Petroleum Institute
Document Number: api 4005
Publish Date: 1968-04-02
Page Count: 153
Available Languages: EN
DOD Adopted: NO
ANSI Approved: NO
Most Recent Revision: YES
Current Version: NO
Status: Inactive
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