Preheat oven to 375°. Grease and flour 8 1/2 x 4 1/2 x 2 1/2 inch glass loaf pan.
Using wooden spoon, stir together wheat flour, flour, wheat germ, rolled oats, baking powder, salt and brown sugar. Pour in beer; mix until well combined. Spread batter into prepared pan; top will appear very irregular. Pour 3 to 4 tablespoons melted margarine over batter. Bake in preheated oven 1 hour 10 minutes. Drizzle remaining margarine over bread after removing from oven.