Determination of calculated octane index for motor gasoline

الملخص EN

The correlation between the octane number of motor gasoline and its physical and chemical properties was investigated with the aim of obtaining a simple and accurate formula for the estimation of the octane quality.

The formula derived in this study was based on the Watson Characterization Factor of the fuel and its 90 % point, with a correlation factor of 0.84.

This equation was tested on a large number of gasoline specimens ; the results obtained were found to be comparable with actual measured research octane numbers, the difference being less than 0.7 in most cases.