Hi, Wayne. The age of the stain makes a difference. If you still have "fresh" oil, put on some Oil Dry, cheap kitty litter, or sand to try to pick up the liquid component of the oil. If the stain has been there for a while or after you have left the above products on the stain for a couple of days and then swept them up, wet the area with water, sprinkle some Tri Sodium Phosphate (TSP) on the stain and let it work for about a half hour, scrub with a scrub brush, and rinse with water. Be careful using the TSP as it can give you a chemical burn. Use a long handled stiff broom or wear rubber gloves if you have to use a small scrub brush. And watch where you put your knees if you use the small brush. You can wake up the next morning with awfully sore knees and not know how they got that way until you remember that they were in the TSP water.