Dish Detergent or Shampoo or Bar Soap
Cover the entire grease stain with liquid dish soap. Grease-fighting detergents could also be helpful, however aren’t necessary. You can use shampoo this way which is designed for body oils so it should work effectively in this application.
Use bar of soap, any hand or body soap will do (make sure it doesn’t contain any additives that might make cleaning difficult, e.g. one like Dove wouldn’t work), or if the fats are very hard, look for bars that are labeled Laundry soap: moisten with water (or ammonia to remove excess grease), then rub the bar over the stain until enough soap has transferred to the foam. For stubborn stains, using an old toothbrush will help you fight the stain better than you could with your hand.
Rinse the affected area with water first, and then vinegar if necessary. Vinegar is a natural cleaner that can be used for many purposes, but it reduces the alkalinity of soaps or cleaners. If necessary, mix one part of vinegar with two parts water, then soak the clothes in water and vinegar, then rinse off the vinegar and use the detergent/ shampoo/ soap method described above.
Spot Remover and Hot Water
Use a stain remover like Shout to remove greasy and/or oily stains. Spray a lot of detergent on the affected area, and then scrub with a toothbrush. Then boil a large pot of water. Let the detergent harden. Remove the boiling water from the stove and carefully pour the water on the stain. There are two things to remember in this step:
- Put your clothes in the bathtub, sink, or other safe place. It is not recommended to put the clothes on the floor and spray them with very hot water.
- Try to put the water in the pot as high as possible.
- Drying in a hot tumble dryer can cause oil or grease to stick to clothes.
Wipe off excess oil with a paper towel. Before moving on to the next step, try to remove as much oil from your clothes as possible. Cover oily stains heavily with baby powder. If needed use a paper towel or spoon to remove baby powder from clothes.
Do this carefully to avoid spilling it on other parts of your clothes. Dip a small amount of detergent and water with your thumb. Then the detergent starts to foam.
Use an old toothbrush to wipe the stain in a circular motion, trying to remove the stain on both sides of the fabric (for example, the inside of the shirt and the outside of the shirt).
WD-40 or Lighter Fluid
Apply some WD-40 or other fluid on the clothes instead of detergent. WD-40 can effectively remove grease and lighter fluids on some surfaces. Before treating stains with WD-40 or a lighter fluid, check for stains in inconspicuous areas of clothing.
Prevention is better than cure. Let the WD-40 stay on your clothes for 20 minutes. Fully soak the clothes in warm water and wash them with detergent. Follow the washing instructions on the clothing label carefully.