$40 for a can of Freon? I think /not/.

Sully1190 said

Since all the coolants have a different fitting, would the Butane based coolant force me to change out fittings? Where would I get one, and how would that work? Would it be worth it?

Click to expand...

The hydrocarbon mixtures (butane) use the same fittings as R-134A. You can buy adapters from R-12 to R-134A at any auto parts store. With HC, you can put it directly into a Mopar RV-2 compressor system. No need to drain the oil or change seals. It will work as well as Freon (slightly better).

Disclaimers:
Officially, you are supposed to first convert from R-12 to R-134A, before converting to HC. The EPA website has a bizarre explanation why, along with fears of fires and explosions from using HC, though I have read of no documented case. Since R-134A is now bad, their strange path makes even less sense.

HC is flammable. R-134A is flammable and poisonous. You can read much about this topic in a search. AC Techs have been trained to bad-mouth HC refrigerant, so you will find much discounting it. As time passes, it seems smarter than ever, and it is in use in Europe in home refrigerators.