In this May 5, 2011 photo, the price for one gallon of unleaded regular gasoline is seen on the sign outside a BP gas station in Beachwood, Ohio. Americans are switching to more fuel efficient cars ... more 
In this May 5, 2011 photo, the price for one gallon of unleaded regular gasoline is seen on the sign outside a BP gas station in Beachwood, Ohio. Americans are switching to more fuel efficient cars and driving fewer miles, but purchases of gasoline are still gobbling up an increasing chunk of the nation’s pocketbook. less 
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Associated Press | Photo By Amy Sancetta
Sat, May 7, 2011 2:59 PM EDT