So... a piece of wooden furniture got left for a couple of years in a high school machine shop, where, somehow, machine oil got dripped on it, in several places. Imagine that... The wood happens to be recovered from a 150-year-old barn, and the shop teacher who was building it is not happy. Anybody know how to get machine oil (unknown specs) out of a piece of pine? The final finish on the intended piece of furniture will be Watco Danish, with a clear top coat. I'm wondering if I just wipe off what I can with mineral spirits/turpentine/lacquer thinner, give it a light sanding, then hit it with the Danish, it'll even be noticeable? Or would the machine oil have some undesirable impacts on the final finish? I have this sneaking feeling that somebody probably had an old canoe with oil drips on it, somewhere along the line.