Chevrolet: A/C Freon & sunvisors, newer cars, pepboys

Question
Can I have the freon thats out on the market put into my car or is there a certain one for 93's. Can we put sunvisors of chev. lumina to my corsica? If you can't help it's o.k. pepboys and Autozone already got stumpped, hehehee.

thanks for taking the time out.

Leon

Answer
Leon ;
 Hi , well as far as the a/c you should use the R12 and the newer cars use 134 A , if you mix them -its BAD so do not mix them . If the system is empty than you can use the 134 A  but some times you must replace the condenser and evaporator to make it work better.So if your system is free of the gas and oil , than you can use the 134 A.
As far  as the visors I would jut try them if they fit than you can use them right. >>>