One of the most unsightly and annoying problems a homeowner faces is dealing with old motor-oil stains on a concrete driveway. Unfortunately, although removing recent oil stains from concrete is a relatively simple task, removing stains that have had a chance to set for any length of time is often quite challenging. But, even when faced will older oil stains, you still have methods available to help you in removal, as long as you are willing to put in the time and effort.
Gather liquid dish soap, a scrub brush and a bucket of water. Pour some liquid dish soap on the stain. Add water to the dish soap. Wet down the concrete surrounding the stain, also. This prevents any oil released during the cleaning process from causing a second stain.
Scrub the stain with the brush forcefully. Add enough water to create a rich lather over the stain. When the liquid soap mixes with the oil, it will loosen the stain from the concrete. Once the oil stain is removed, do not rinse the excess oil and water off the driveway. This will pollute your yard or neighborhood.
Blot up the mixture from the concrete with paper towels or kitty litter. Dispose of it in a landfill certified for this type of environmental hazard. Talk to your waste collection service to see if it can help you with the disposal.
Pour a solvent, such as kerosene, on the old stain if you are not satisfied with the results from using liquid dish soap. But keep in mind that solvents are flammable, and take proper precautions. If decide that using kerosene is necessary, consult with your fire department for safety tips.