Thanks for the reply's.
A family member has a few swords that I pulled out and oiled for him that
hadn't seen daylight in 15 years -WD40 was his choice that he would use (After reading
care for swords i got Choji oil that I used.) All the blades were in great condition.
I did take a few pictures and now looking back at them i find myself with question and
hope to post them here. The knowledge here is incredible -Thanks again