There are many types of stains that develop on concrete pavers. The most common stains are made by oil and grease. Many stains can be removed using household items if the stain is treated when it occurs. Older stains that have had time to soak into the concrete may need to be removed by a professional.
Removing oil stains
Soak up as much oil as possible with a rag as soon as you notice the spill. Use a blotting technique. Do not smear or rub the oil into the concrete.
Scrub the affected area with dish soap and a scrubbing brush. Rinse the area with water. Repeat scrubbing if necessary. Rinse with water.
Apply a degreaser to the affected area if the stain remains.
Removing grease stains
Blot the affected area with a rag immediately following a spill.
Mix hot water in a bucket with dish soap.
Scrub the affected area with the hot soapy water and a scrubbing sponge until removed. Rinse with water.