Comparative Analysis of the Octane Rating of Extra and Super Gasoline at Stations in Quito
Keywords:
Comparative analysis, Fuel additives, Fuels, Gasoline, Octane rating, Quality controlAbstract
The quality of fuel is essential to ensure the efficient performance of modern internal combustion engines, especially in high-altitude cities such as Quito, located at 2,850 meters above sea level, where atmospheric conditions affect combustion. In Ecuador, Extra (approximately 85 octane) and Súper (92–95 octane) gasolines are marketed. This study aims to determine whether there are significant variations in octane number among different service stations. Samples of Extra and Súper gasoline were collected from various stations located in geographically distributed areas of Quito, and three independent measurements were performed per sample using calibrated digital octane meters to obtain representative averages. The results show that the fuels do comply with Ecuadorian regulations; moreover, the measured octane index exceeds the minimum required value. These findings indicate that there is variability in the fuel quality available to consumers, despite established regulatory standards.
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