Carrot Cake Loaf

• 1 1/2 cups vegetable oil
• 2 cups sugar
• 4 eggs beaten
• 2 cups flour
• 2 teaspoons cinnamon
• 2 teaspoons baking soda
• 2 teaspoons baking powder
• 3 cups grated carrots
• 1 cup chopped nuts

Frosting

• 3 1/2 cups confectioners sugar
• 1/2 cup butter softened
• 8 ounces cream cheese softened
• 1 teaspoon vanilla