You would have to replace the orifice tube, accumulator or receiver-drier (which one you have depends on what type of AC system you have), as well as remove all of the R12 refrigerant, and you'd have to replace the compressor oil with PAG.
No , it's R134-a
Originally might have had R-12 (depending on date of mfg.) should be converted to R-134A you do have R12 refrigerant unless it has already been retrofitted to R134 and then it should be indicated by the person who retrofitted the car. look for a sticker saying R134
Your car contains no Freon R12, it contains R134 which is not Freon. If you need to add refrigerant then you have a leak. It is illegal to add refrigerant without first repairing the leak. Take it to a professional and get the leak repaired.
This will be listed somewhere on the unit or in the owner's manual. 1995 was the last year of production of R12 so your car may have R12 or R134. If it needs service, this is not a DIY job. You have neither the expertise not the tools to do this safely and correctly. Take it to a pro.
R12 was banned in 1995. Any vehicle from 1994 back will have R12. Any vehicle from 1996 to today will have R134, R134a, etc. A 1995 may have R12 or R134. Any car that has been retrofitted, even if it is older then 1994 may not have R12. If it was retrofitted it should have a label stating this.
The car was originally supplied from the manufacturer with r12.
None - a 1995 model year car uses R134a refrigerant, not R12.
You do not as R134a is what is approved for that car. If you could find R12 it would cost you near $100.00 a pound.
No you don't have to change the A/C Compressor.
Freon is the trade name for R12. Your car contains R134 or R134a which is not Freon.
It came out with R12 and needs to be converted for R134. DON'T MIX THEM. My car with 134R cools as well as any car with R12. I switched my '92 Blazer S-10 over and have been very happy with it.
Freon (R12) is a refrigerant that started being phased out in the early 90s. The last I knew it was selling for about $50.00 a pound and a car usually takes about 2 pounds. So a simple evacuation, then recharge may cost about $150.00. This however probably wouldn't include diagnosis of the reason why it needs recharging in the first place (ie a leak) so replacing alone will most likely lead to another trip to the garage to charge it and actually find the leak. If the car is 1992 or newer it will almost definitely be equipt with the new refrigerant R134 which costs about $18.00 a pound making the repair that much cheaper. Also if it is equipt with an R12 system the best recomendation is to have it retrofitted to R134. A simple and fairly inexpensive job.