I removed the AF housing about month ago. I just realized I didn't reconnect
that tube which runs from the oil filler cap to the housing when I reinstalled.
I changed the oil about that same week. Is it likely that a lot of unfiltered dirt
got sucked into motor? That was 3k miles of driving.

 

not likely unless you drive down dry dirt roads

 

I haven't since. Good news. thx I'll probably change my oil earlier than usual
to be safe.