Cover the stain with cat litter, baking soda, cornstarch, or sawdust
Let it sit for several hours or overnight
Sweep up the absorbent material
Apply dish soap or a degreaser directly to the stain
Scrub with a stiff-bristle brush
Rinse with hot water
Repeat if needed
For older stains, use a concrete cleaner or oil-stain remover
Pressure wash the area if available
Use a poultice made for concrete oil stains for deep stains
Avoid using bleach on oil stains
Seal the driveway after cleaning to help prevent future stains