How to Remove Oil and Grease Stains

The short answer

Lift off any surface grease with a blunt edge such as a spoon, then blot — never rub — with a clean white cloth or paper towel. An absorbent powder such as cornflour or baking soda can help collect excess surface oil, though it rarely removes the whole mark. Then work a small amount of liquid dishwashing detergent into the stain, leave it a few minutes and rinse with warm water if the care label allows. Air dry and check the mark has gone before any heat touches the item.

Before you treat anything

Read the care label first — wool, silk, and dry-clean-only symbols change the plan completely.
Patch-test any product on a hidden seam, hem or carpet offcut and wait a few minutes to check for colour or texture change.
Use white cloths so dye from the cloth cannot transfer.
Use every product only as its own label directs, and work in a well-ventilated room.
Never mix cleaning products together — some combinations release harmful fumes.

Fresh oil and grease stains

Scrape away any solid grease, then blot gently. Apply an absorbent powder for 10 to 15 minutes and brush it off; this can collect excess surface oil but usually leaves a mark behind. Then apply a few drops of liquid dishwashing detergent, work it in gently with a fingertip or soft brush, leave five to ten minutes and rinse. Water on its own does little for oil because oil and water do not mix, so a detergent is what does the work — water is not harmful here, it simply is not enough by itself.

Dried oil and grease stains

Older marks are harder and sometimes permanent. Apply detergent directly, leave it 15 to 30 minutes so it has time to work, then rinse and inspect in daylight. Two or three gentle rounds achieve more than one aggressive one. A pre-treatment or laundry stain product may help where both its label and the care label allow it.

Washable clothing

Treat the stain before washing, then launder at the warmest temperature the care label permits — warmth helps detergent shift grease, but only within the label's limits. Air dry and inspect. Do not iron or machine-dry the item until the stain has gone, because heat can set remaining oil.

Carpet

Blot up what you can, apply absorbent powder, leave it 15 to 30 minutes and vacuum. Then dab with a cloth barely dampened with a weak solution of dishwashing detergent in warm water, blotting repeatedly rather than rubbing. Do not oversaturate — soaking the backing and underlay causes its own problems. Rinse by blotting with a clean damp cloth and dry with airflow.

Upholstery

Check the manufacturer's cleaning code first; some covers must not be treated with water. Use far less liquid than on carpet, dab with a barely damp cloth, feather outwards to avoid a tide line, and dry quickly so the padding does not stay wet. Avoid rubbing, which can distort the pile or weave.

Different kinds of oil and grease

Cooking oil and salad dressing usually respond to absorbent powder followed by dishwashing detergent. Butter and food grease are similar, but scrape off the solid part first. Makeup oils, foundation and sunscreen often carry pigment as well as oil, so expect to treat the grease first and then the remaining colour, gently and repeatedly. Mechanical grease and engine oil are the hardest and are often only partly removable at home; use a laundry pre-treatment product according to its label, and accept that a shadow may remain.

Fabric safety

Colourfast washable cotton and linen tolerate detergent and repeated rinsing. Synthetics such as polyester hold oil readily and can set marks at modest heat, so keep temperatures low and repeat treatment instead. Wool dislikes rubbing, hot water and alkaline products. Silk can ring from water alone and is usually best left to a professional. Delicate and dry-clean-only items should be blotted only, then taken to a cleaner.

If a mark remains

Repeating a gentle treatment is safer than escalating to a stronger one. Let the item dry, inspect it in daylight, then repeat the detergent step. If three careful attempts make no difference, further attempts are more likely to damage the fibres than to help. No method removes every oil stain from every material.

What not to do

Do not rub the stain, do not tumble dry or iron until the mark has gone, do not pour liquid directly onto carpet or upholstery, do not use petrol, solvents, fuels or unlabelled mixtures, do not apply lubricant sprays or essential oils to fabric, do not use any product against its label or the item's care instructions, and never mix cleaning products.

When to call a professional

Stop and get help with valuable, antique, delicate or dry-clean-only items, silk, wool, leather and suede, tailored garments, and large spills on wool rugs or fitted carpet. Also stop if a patch test changes colour or texture, or if the item has already been through a hot wash or dryer.