I think very few people are able to get away with never using product of some sort to wash. Do you detangle when you wash to redistribute the oil? Most of us do not brush, but detangle when wet either with fingers or a wide-tooth comb.
Medium porosity, medium density, medium thickness
Current routine: Daily co-washing with Giovanni conditioner (whatever is on sale), styling with Catwalk Curls Rock Curl Amplifier, and 1-2x per week cleansing with a Chagrin Valley shampoo bar followed by an ACV rinse