Pennsylvania Dutch Banana Bread

1 1/2 cups whole wheat flour
1 1/2 cups unbleached regular flour
1 cup sugar
1 teaspoon baking soda
1 teaspoon baking powder
1/2 cup soft margarine
3/4 teaspoon salt
1/3 cup oil
2 cups mashed ripe bananas
1 cup chopped nuts (optional)
Dash of cinnamon (optional)
Dash of nutmeg (optional)

Cream sugar and margarine; add eggs and mix well. Stir in baking soda, baking powder and salt. Add oil and stir again. Add bananas and mix. Add flour, 1 cup at a time, and stir well after each addition.

Grease and flour 4 to 5 bread tins. Bake at 350 degrees F for 1 hour. Test for doneness with wooden pick until it comes out clean. When cool, wrap in plastic. Loaves may be frozen.