Preheat oven to 350°F (175°C). Grease a loaf pan.
In a large bowl, mix applesauce, oil, and sugar.
In another bowl, combine flour, baking soda, baking powder, salt, cinnamon, nutmeg, and cloves.
Gradually add dry ingredients to wet ingredients, mixing until just combined.
Fold in nuts if using.
Pour batter into prepared loaf pan.
Bake for 50 minutes or until a toothpick inserted into the center comes out clean.
Let cool in the pan for 10 minutes, then transfer to a wire rack to cool completely.