Apple Walnut Bread

3/4 cup vegetable oil
1/4 cup applesauce
3 eggs
1 3/4 cups white sugar
1 teaspoon vanilla extract
2 cups all-purpose flour
1 cup whole wheat flour
1 teaspoon ground cinnamon
1 teaspoon baking soda
1 teaspoon salt
3 cups apples, peeled, cored and cubed
1 cup walnuts, chopped