Well for now the only solution until prices lower is carpooling and planning your routes.

I know right now in gasoline 10% ethanol is added for cleaner burning fuel and more efficiency. In most large busses 85% ethanol is used (also referred too as 'natural gas.') along with 15% of gasoline seeing it requires a crude oil base. Now... If we can harness the knowledge of making ethanol alone into an efficient fuel we'd resolve a lot of problems. Atleast the amount of ethanol being used would outweight the gasoline in ration.