Grease stains on clothing can be difficult to remove. If you discover a grease stain after you've already washed and dried your clothing, you may have to work harder to remove the set-in grease stain. It's possible to remove the stain using supplies from your home or the grocery store. Once removed, your garment will be clean, stain-free and ready to wear.
Lay down a towel on your work surface.
Wet the grease-stained area of your clothing with cold water. Pour some clear hair shampoo on the stain and rub the fabric together to work the shampoo into the fibers. Allow the shampoo to sit on the stain for 30 minutes.
Rinse the shampoo off the stain with cold water. Spray a petroleum-based stain pre-treatment onto the grease stain and work it into the fibers. Allow the pre-treatment to sit on the stain for 30 minutes.
Rinse the pre-treatment off the grease stain and check for progress. Proceed to the next step if any grease stains remain. If not, wash your garment in the hottest water possible according to the care label, using heavy-duty laundry detergent.
Mix equal parts of heavy-duty laundry detergent and water. Rub the paste into the grease stain using an old toothbrush. Allow the paste to sit on the stain for 30 minutes. Wash your garment in the hottest water possible according to the care label. Use heavy-duty laundry detergent for washing.