If you own an old car (or just a car, quite frankly), you may have experienced oil leaks while your car sits in your driveway or garage. Or perhaps your patio or stone pavers have unsightly oil stains ...

Oil stain on concrete under a car - Nongasimo/Getty Images If you've ever spotted a dark, greasy blotch under the car in your driveway, you know how frustrating it can be. Whether it's a small leak ...