The decision is a vital step forward, however, I suspect one of the primary barriers to more ethanol use has more to do with public understanding and perception of ethanol. I see a number of flex fuel vehicles in the city where I live but suspect few of them use ethanol otherwise the one ethanol pump in this city would have vehicles lined up behind it rather than looking like it is rarely used.
It would be interesting to conduct a psychological behavioral study to identify primary reasons why some flex-fuel vehicle owners may chose not to use ethanol even when it is available, identify possible communications and/or incentive strategies to encourage use of ethanol, then assess the effectiveness of those communications strategies (ie an ABAB study design).
Some reasons that come to mind could include things as simple as: Some owners may not know their vehicle can use ethanol, some owners may not believe ethanol has a positive impact, some are purely motivated by costs, some may not be motivated purely by cost. Understanding the cognitions behind why people may or may not choose to use ethanol is probably a necessary starting point to develop a strategy that will encourage ethanol use.
This might be something ethanol collective could develop as a pre-formated study that multiple university psychology and public policy departments could adapt for graduate student work.
Edited: November 07, 2010 12:11PM