A tenant recently moved and left the house in good shape except for the cement driveway. Apparently, he changed the oil in his cars on the driveway and spilled quite a bit of it on several places. I tried scrubbing it with a stiff brush and some household cleaners and it did not work very well. Any ideas?
Mac answer: There are commercial preparations specially designed for this purpose. You can try auto stores, or go to a place that sells industrial chemicals for cleaning. Make sure you follow the directions carefully; some of this stuff is pretty strong. Or, you could try pressure washing it, if you have one or can rent one easily. Let me know if a particular product works for you so I can pass it along to others, I have had several similar requests like this one.
