Put on protective cleaning gloves.
Mix 1/2 cup of Oil Eater Cleaner/Degreaser with 2 cups of warm water, and pour the solution into a spray bottle.
Spray the solution onto the area that is stained or dirty, then gently blot the stain with a soft, dry cloth. Do not scrub or agitate the stain.
Blot the stain again with a clean, damp cloth.
Allow the couch to air-dry, and repeat the process if the stain is still visible. If the stain still does not come out, try making a stronger cleaning solution, this time with 1/2 cup of Oil Eater Cleaner/Degreaser and 1 and 1/2 cups of warm water.