I need some advice concerning the finishing of the floor. My home is from 1870 and I uncovered the original oak planks floor. The worker that cleaned and sanded the floor, recommended me to protect it with oil. I applied an oil specific for flooring and also to darken a bit the oak planks. At first the result seemed to be good with a nice satin finishing. However, shortly after, the satin disappeared and in some parts of the oak floor there appeared brown-greyish areas. The finishing now is not satin anymore, it looks dull, without life. I was thinking of applying wax but not sure this will work. I would like the floor to recover the satin look it had when applying the oil in it. Any advice is welcome :-)