SYMPOSIA PAPER Published: 01 January 1961

Significance in Evaluation of Motor Fuel Volatility


There appear to be no volatility problems which, from a motor fuel specification standpoint, cannot be adequately solved through use of existing information. Currently, there exist two fields where more detailed study of available background information could be useful. Thus, the present ASTM system of subdividing the country into zones as a basis for seasonal and climatic control of volatility is a rough approximation. Simpler and more significant systems can be developed on the basis of Weather Bureau temperature data, modified through application of appropriate altitude corrections. The other field of useful study involves the traditional conflict between ease of engine starting and freedom from vapor lock. Here again, sufficiently complete information is available to permit more definitive specification of fuel characteristics.

Author Information

Legatski, T., W.
Phillips Petroleum Co., Bartlesville, Okla.
Bridgeman, O., C.
Phillips Petroleum Co., Bartlesville, Okla.
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Developed by Committee: D02
Pages: 74–87
DOI: 10.1520/STP45939S
ISBN-EB: 978-0-8031-6747-6
ISBN-13: 978-0-8031-6588-5