Did you get it from Yangdu or a third party? HI uses motor oil as far as I can tell to protect the blades. I usually clean it off with Windex and add a coat of Renwax to my blades, so it's possible that's what someone else did if you didn't get it from HI.

Ted Wilson
Dum inter homines sumus, colamus humanitatem.
BTW - Winter is Coming.