Technically, freeze12 is 80% 134A and 20% 142b, so basically what Icemark said. There are no drop-in replacements for R-12 (at least in the US) where you can simply top off the existing r-12 system. You should pull a vacuum to get rid of the old refrigerant, replace the fittings with the correct ones, and then put in the new refrigerant.

 

nope, 12a wont work, itll only work on first gen systems, youll need duracool 13b for this application.
(joke if you didnt catch on yet)

 

No, but the Duracool 12a and the Envirosafe 12a is +/- 80% Propane and 20% Isobutate, with a little bit of magic thrown in for fun.

There is a great video of a Porsche 928 at a car show venting and burning the HC a/c charge during the show. Apparantly Porsche 928 owners carry fire extinguishers due to wiring issues and a whole bunch of the extiguishers were brought to bear, so there was little damage except to paint.

I will see if I can look it up and post a link, for entertainment purposes only.

I have run the envirosafe HC in a couple of different cars and my primary objection to it is that it just doesn't have the ***** for our local weather.

Jack

 

so what Sideways7 said i think im just going to do a convertion 134a instead all for only $160 and i think im going to finally get some ac today anyone want to give me confidence and tell me its what i should do?

 

Do it!!!