The most immediate impact on consumers is the increased cost of maintaining car and truck air-conditioners. Americans ... Over 20 million of them need servicing each year, the most common problem being loss of refrigerant through leakage. CFC12 ... It is no longer possible to repair onea#39;s own vehicle air- conditioner, as the law now forbids the sale of small cans of CFC-12 to the general public. Vehicleanbsp;...