Old oil is a problem... adding it to any finish is almost always a mistake. I suggest getting a small quantity of high grade fresh oil from a paint or art supply store. It will cure reliably and save many headaches...
The oil I have in quantity is not old. I do have an old bottle of Tru-oil though - not sure why I still have that bottle.
One of my things I hope to be good at, in retirement, is building furniture, thus the quantity of oil. My son is a wood craftsman who is in much demand. I'm following in his footsteps, hopefully.
Working wood is very pleasing way to spend the day. Especially in the next few months of blowing snow.
