How to Remove Old Oil Stain from Clothes

Can You Remove Old Oil Stains from Clothes?

Yes — even oil stains that have been through the wash and dryer can often be removed. It takes more effort and patience than fresh stains, but the right combination of products will break down even oxidized, set-in grease. Here's how.

Why Old Oil Stains Are Harder

When oil sits in fabric for a long time — especially after going through a hot dryer — it oxidizes and bonds more tightly to the fibers. The stain may look darker or have a yellowish tinge. You'll need to work harder to lift it, but it's not impossible.

What You'll Need

• Baking soda or cornstarch
• Dawn Ultra Dish Soap
• Carbona Liquid Stain Devils
• Microfiber cloths
• Soft-bristled brush or old toothbrush
• WD-40 (optional, for very stubborn set-in stains)

Step-by-Step: Removing Old Oil Stains

1. Apply baking soda first. Even on old stains, baking soda helps draw out residual oil. Cover the stain and let sit for 30 minutes, then brush off.
2. Apply Carbona Stain Devils. Carbona Liquid Stain Devils is enzyme-based and specifically formulated for grease and oil. Apply generously and let sit for 15–20 minutes.
3. Add Dawn dish soap. Without rinsing off the enzyme cleaner, apply a few drops of Dawn Ultra Dish Soap on top. Work both products into the fabric with a soft brush.
4. Let it sit for 20–30 minutes. Give the products time to penetrate the oxidized oil.
5. Scrub gently. Use an old toothbrush to work the cleaners deeper into the fibers with circular motions.
6. Rinse with warm water. Rinse thoroughly, then check the stain.
7. Repeat if needed. Old stains often need 2–3 rounds of treatment. Don't give up after one try.
8. Machine wash warm. Once the stain has lifted, wash on a warm cycle. Check before drying.

The WD-40 Trick for Extremely Set-In Stains

For oil stains that have been through the dryer multiple times, try this: spray a small amount of WD-40 on the stain and let sit for 15 minutes. WD-40 is oil-based and can re-lubricate the dried, oxidized oil, making it easier to lift. Then apply baking soda to absorb the WD-40, follow with Dawn dish soap, and wash thoroughly.

Frequently Asked Questions

Can I remove an oil stain that's been washed and dried?

Yes, though it's harder. The dryer heat sets the stain, but with Carbona Stain Devils and Dawn dish soap, many set-in oil stains can still be removed with repeated treatments.

How many times do I need to treat an old oil stain?

Expect 2–3 treatments for stains that have been through the dryer. Be patient — each treatment lifts a little more of the oxidized oil.

What if the stain still won't come out?

Try the WD-40 method described above, or take the garment to a professional dry cleaner who has access to stronger solvents.