Chocolate Zucchini Cake

1/2 c. margarine
1/2 c. oil
1 3/4 c. sugar
2 eggs
1 tsp. vanilla
1/2 c. buttermilk
2 1/2 c. flour
4 Tbsp. cocoa
1/2 tsp. bkg. Powder
1/2 tsp. cinnamon
1 tsp. bkg. Soda
1/2 tsp. cloves
2 c. shredded zucchini
1 c. chocolate chips

Cream together margarine, oil, and sugar. Add eggs, vanilla, and buttermilk. In a separate bowl, combine dry ingredients. Add to cake mixture and mix well. Add zucchini. Add some chips now and save some for topping. Pour into greased 9 x 12 inch pan. Bake at 325 for 40-45 minutes.