Pennsylvania motorists continue to pay slightly above the national average for a gallon of gas. This according to Triple-A, which reported yesterday that the average price for a gallon of regular unleaded fell to just over four dollars, 92 cents in the Keystone State. That’s slightly above the national average price at the pump, which also fell yesterday to settle at just over four-82. Georgia continues to have the cheapest gas, posting a per-gallon price of four-35 on Friday. On the other end of the spectrum, average prices fell slightly in California, hitting six dollars, 27 cents.