If you have an oil spill on your garage floor, the first step is to contain the spill. You can do this by using absorbent materials like kitty litter, sand, or newspapers. Once the spill is contained, you can then start cleaning up the surface using a brush or other scrubbing tool and liquid dish soap, and finally rinse the area in water. And that’s it! With a little bit of effort, you can get that oil stain out of your garage floor.