If you were replacing the compressor on your camaro, would you change your system to R134 or keep R12 in it?

 

I'm planning on going the Vintage Air or Classic Air system when I do it. I'd like to just weld up the holes in my firewall.

 

I'd check with the AC service techs and see what they say. Make sure the 134 will not create any issues if the two gases possibly mix with residue leftover from the R12.

 

You could use Freeze 12, mixes well with R12 refrigerant and lube, and has the same characteristics as R12 but at the price of R134a.

 

I would say switch to R-134a it's cheap and easy to come by. I've done many retrofits to r-134a and really the only thing you need to change is the service ports, add in a few ounces of pag oil have it charged up and call it a day. r-12 is too expensive to mess with anymore. If you have a slow leak and have to charge it up every other year or every year it gets really expensive. I've never heard of freeze 12 I wouldn't use it unless the service shop you go to uses it. even then I would pry say stay with r-134a

Also don't try and charge the system yourself unless you at least have a vacuum pump and manifold gauge set and know a little about what your doing. Most places can evacuate and charge the system fairly cheap, just call around.

 

FYI re Freeze 12, I've been using that stuff on some of my very old cars for the last 6 years. This link will give more info.
freeze 12 r12,FREEZE12 COMPATIBLE R12 REPLACEMENT A/C REFRIGERANT

 

Thats interesting. Weird how I have never heard of it before. I guess it pry cause I worked at a GM dealership and we would use what GM wanted us to. Well Mike I guess you'll have to decide for yourself what is best for you. I wouldn't stick with r-12. IF you can find some where that uses freeze 12 try it out I guess. However everyone that does a/c is going to have r-134a.