- 1). Spread cornstarch onto the oil stain to absorb oil from the leather. Rub in the cornstarch briskly with your fingers.
- 2). Let the cornstarch sit for five minutes, then suction it up with a vacuum cleaner brush attachment.
- 3). Repeat this process several times until all the oil is gone. Clean the leather with a quality leather cleaner, and apply leather conditioner for future protection.