Completely Random... But I thought I would ask in case anyone has some good tips. I drive an old Caddie that is currently leaking lots of Transmission fluid. I am consistently adding to it until I can get the leak fixed... But unfortuanetly my drip pan was knocked while I was pulling out of the driveway...and I ahve a Tranny Fluid Mess all over my driveway. I was thinking about renting a pressure sprayer... But are there any tips on the best way to clear an oil or transmission fluid stain from your driveway?