In bowl, combine flour, cinnamon, baking soda, baking powder and salt; set aside. In large mixing bowl, place oil, sugar, eggs, vanilla and apples. Stir into flour mixture. Add walnuts and mix. Divided mixture between two greased 8-in. x 4-in. bread pans. Bake at 350 degrees F for 40-45 minutes or until bread test done. Cool for 10 minutes on wire rack before removing from pan.