How Removing Grease and Oil Stains?
Blot oil and grease stains as soon as you see them. The longer that a grease or oil stain sits on the concrete the harder it will be to remove. Blot any stains that you see immediately with a paper towel so that it isn’t as difficult to remove later on.
Concrete is a porous material and absorbs oil and grease very easily.Combine acetone with kitty litter to form a paste. Put on a pair of gloves and dump 10 ounces (283.49 grams) of kitty litter into a bowl and add a couple of drops of acetone or nail polish remover to the bowl.
Mix the solution together and then continue adding acetone until it starts to form a paste. If the paste is too dry, continue adding acetone to the bowl. If your paste comes out too watery, add more kitty litter to the solution.
This combination of an absorbent material and a solvent is called a poultice. You can use shredded paper towels, old newspapers, or sawdust as an alternative to kitty litter.
Spread the paste over the stains. Put on protective gloves and use your hands to spread the paste over the stains. Cover the paste with plastic wrap and allow the paste to oxidize for two hours. It should absorb some of the oil and grease stain.