Yes, car wash mud can be used to remove oil film.Car Wash Mud is an effective tool that can help remove oil film on the glass. However, it should be noted that using car wash mud to remove oil film may require a certain amount of manpower and time. In addition, if there are films on the vehicle glass, special attention should be paid to avoid damaging these films during the cleaning process. Therefore, although car wash mud can remove oil film, caution should be exercised in practical operation to prevent unnecessary damage to the vehicle's glass or film.