If you have unsightly, slippery oil stains on your driveway you can rid these hazards by saturating the spots with dish liquid. Let sit overnight (barricade this if in a high traffic area so no one slips on the soap!). In the morning hose off. You don’t even have to scrub! Your neighbors will envy your clean driveway because the compounds in the dish soap has broken down the grease and grime.