Cornmeal or sawdust
Dishwater or laundry detergent
Pot (for boiling water)
Don't let those grease and oil stains on your concrete floor just sit there. Here's a quick tip for removing them quick and easy.
First, you need to sop up any wet areas. Ordinary cornmeal or sawdust works great, but you'll need to leave it on the stain for about three hours. It's also important to put this absorbent material on the stain as soon as possible. The sooner it goes to work, the less likely your concrete floor is going to have a stubborn stain.
After the three hours have passed, it's time to sweep up up the saw dust or cornmeal - whichever you used.
Now you can use one of a couple of methods to remove the stain:
You can wet the concrete and then sprinkle dry dishwasher detergent on the area. Let that stand for a few minutes, and then you'll need to pour some boiling water on top of it. Scrub and rinse, and you'll have a much less visible stain.
You can also scrub the stain with a stiff brush and some concentrated laundry detergent. Rinse that well and let it dry, and you'll see similar results.
With either of these methods, you may need to repeat the process to get the best effect.