California drivers will soon see another increase at the pump as the state’s gasoline excise tax rises again on July 1 , adding to the cost of filling up in a state already among the nation’s highest fuel prices. The state excise tax will increase by 2.2 cents per gallon, bringing the total gas tax to 63.4 cents per gallon. The adjustment applies only to California’s excise tax and does not include federal fuel taxes or sales taxes that are already built into the price motorists pay. Despite