- Joined
- Jun 8, 2022
- Messages
- 5,580
Yes, the dirty part is on the dirty side of the filter.Strange. I've had black air filters on vehicles that never left pavement. Usually about every 30k I throw a new filter on.
No dust in the intake past the filter.
Surely something passes, but its so fine to be un-noticeable, or stays in suspension and is ingested.
I change my filters approximately every 10K. Used to be only Wix, but I have switched to Denso.