GarmentCare Guide 
Oil-Stain Care for Cotton Clothing
An oily patch needs more than a decision to wash the garment again. Remove excess without spreading it, check the cotton item's full care instructions, and choose a compatible pretreatment. The type of oil and the presence of other fibers or finishes still matter. Inspect the result before adding heat that could make remaining residue harder to remove.
Remove excess without spreading it
Tide describes oil marks as greasy patches that may darken if left untreated. The first steps are prompt attention, gentle blotting to remove excess, and checking the clothing label. The type of oil also matters; cooking oil and contaminated motor oil should not be treated as identical situations.
Pretreat and inspect
The source discusses dish detergent for suitable cooking-oil stains and laundry-detergent treatment for washable items. Follow the fabric and product instructions rather than combining remedies indiscriminately. Before using a dryer, verify that the mark has gone, because heat can set residual oil stains. Repeat a compatible treatment if necessary instead of rushing to dry the garment.
