how often do you wash your locks?
Dread Maintenance
I don't think it can be that generalized. I only wash mine every ten days or so and it never really gets oily, I just don't like my scalp to feel dirty. My husband's hair starts to look oily within 36 hours after a wash. We're both light skinned and freckled. I have red hair, both his sisters have red hair. We use the same shampoo.