Pennsylvania motorists are paying a little less this week as they top off the tank. As reported by Triple-A, the average price for a gallon of regular fell last week in the Keystone State to three-dollars-25-cents. Here at home the cost of gas is running at three-dollars-35-cents a gallon. Nationwide, the average is at three-oh-three a gallon. Oklahoma has the lowest average price per gallon at two-52. Prices remain highest in Hawaii at four-56 a gallon.