Setiawan, Winardi and Daniel Sperling (1993) Premium Gasoline Overbuying in the U.S.: Consumer-Based Choice Analysis. Institute of Transportation Studies, University of California, Davis, Research Report UCD-ITS-RR-93-25
It is widely believed that many drivers do not gain any benefit from using premium gasoline. We review the substantial technical evidence underlying this presumption, and then analyze a survey of vehicle owners in New York and California to determine why people purchase premium gasoline, given that many of them receive no clear benefit.
We found that demand for premium gasoline is highly elastic, women and drivers in cenain regions are more inclined to purchase premium gasoline, income plays a minor role, and the benefits are poorly understood. Many people buy premium gasoline for rather vague reasons, not on the basis of strong evidence or justification.