Combine sugar with oil; mix well. Add eggs, 1 at a time and beat well after each addition. Combine flour and baking powder, add to sugar and oil mixture, alternating flour and milk. Cover bottom of 2 greased loaf pans with a layer of batter and sprinkle with the sugar and cinnamon mixture. Continue alternating the batter and sugar and cinnamon mixture and finish with batter.

Bake in 350 degree oven for 40 to 50 minutes. Take out of pans and sprinkle top with powdered sugar while still warm.