Grease twelve muffin cups or use paper liners.
In a large bowl, combine oil, All-Bran cereal and buttermilk. Let sit for about 5 minutes.
Add to the large bowl: wheat and white flours, baking soda, baking powder, cinnamon and salt.
Sprinkle with wheat bran or wheat germ (optional).
Bake at 400 on center rack for about 15-18 minutes, or until muffin springs back when touched lightly.