Oil stain is one of the most difficult and persistent stains and unfortunately it is quite common. However, if treated immediately, you can get rid of it very easily.
The basic material you will need is talc. Cover the stain with a rich layer and leave it on for about 5 minutes. Talc is very useful as it absorbs the liquid and greasy elements of the stain, thus making its cleaning a toy. Then remove the powder by shaking the laundry well and apply a little dishwashing detergent to the surface of the stain before putting it in the washing machine for washing.
The stain will have disappeared after washing. It is important not to leave the stain on the fabric for many hours and to do the procedure relatively immediately.