I have a client that has a fair amount of this honed granite. It looks like cashmere white.

It has several oil looking spots. She said she had a party and had a cleaning company come in and clean floor. App. 2000 sq. ft.. It took that cleaning company 1 hour to clean floor. She said they came in with buffers and the stains look worse after they left.

The spots are not all over so I do not think the cleaning company used some goofy chemicals. The client can not tell  me what stained the floor. I will go try my tricks but does anyone have an idea to draw ou,t what I think is an oil stain, from this granite?

If I can not draw it out, I am thinking of using a color enhancer to darken. Your thoughts please.