R-134 has been the flavor of choice since approx 1994 by auto manufacturer with the restrictions placed on R-12..
The service ports is out in the open on the suction and discharge lines... the caps are molded with "L" and "H" on top, and they is different size.
If you do not know what you are doing, you be best to have a pro do it, as you can get hurt if you not know what is supposed to be happening.
Unless your car has been wrecked at front and shoddy body shop repairs,,,, there should be a yellow or whute label on the core support or hood detailing the A/C system for capacity and refrigerant type.
The service ports is out in the open on the suction and discharge lines... the caps are molded with "L" and "H" on top, and they is different size.
If you do not know what you are doing, you be best to have a pro do it, as you can get hurt if you not know what is supposed to be happening.
Unless your car has been wrecked at front and shoddy body shop repairs,,,, there should be a yellow or whute label on the core support or hood detailing the A/C system for capacity and refrigerant type.