hehe
i guess i'm being a little paranoid. and yeah i probably shoulda gotten a TBN. but it does seem a little inconclusive to me and i hate that. oh well. I wasn't really considering a TBN because i figured ~6,000mi was enough.
The oil in it now is QS Torquepower synth 10w30 (WM special), gonna run it approx the same interval and likely get a TBN next time.