I got a UNI for Karens bike today and noticed the same...not oiled. Is here a diff in filter oils? I have some K&N filter oil...can I use it on the UNI?

SOLD: 07 Black BA, 39mm FCRs, TPUSA stage 1 head, TPUSA 813 cams, TPUSA 10.8:1 pistons, TTP #3 igniter, Specialty Spares Long Cannons, Tsukayu Hard Bags. 82HP/55tq NEW: 19 Goldwing Tour DCT