Concrete Cleaning

On my travels through the realm of new cleaning methods, I came across Concrete Cleaning Technologies. Its a business that provides a variety of hard-surface cleaning services, including a waterless method of removing oil-based stains from parking lots and driveways. These dry powders seem to be selling well due to the 'green' issue & laws concerning run off down storm drains.

The Bio-Dry product employs a blend of micro-organisms that eat, liquefy and crystallize grease molecules. Before applying the bioremediation product, you spread the Bio-Dry cleaning powder on heavy grease spots and scrub them with a wire brush. The microorganisms create grease bubbles, which blow off the surface. Then apply the Bio-Dry over the entire surface and leave it on to allow the microorganisms to consume the rest of the oil and grease. The oil or grease contaminants are reduced to organic compounds such as carbon dioxide, water and fatty acids. If it doesn't rain, the Bio-Dry residue will remain in place and continue working on any new stains for as long as a month.

I also found another called Oil-Away, apparently 'the original,' out of the many out there. You could always do it the old way.