Driveways much be kept clean and free from all stains including oil or other substances such as transmission fluid.
The best solution to this problem is sold at your local hardware store. Ask any representative to direct you to the best product for the type of stain you may have.
A regular hosing down of your driveway with a small amount of detergent will also help to keep stains at bay. Oil stains can become a serious problem leaving permanent stains in the driveway. Please take the proper steps to maintain your driveway and keep your community neat and attractive.