quote:Originally posted by Bosswrench:
Not sure of Freeze-12 but a few substitutes use PROPANE as the cold-making gas, which does work. There are all sorts of systems out there- many use extremely toxic gasses and are only used in commercial business A/Cs, in frozen-food lockers or long-haul refrigerator semis. Also keep in mind that with Freeze-12 and other such freon substitutes, you're on your own as far as charging and service. Most A/C dealers will not touch a car with these gasses in them, 'cause the law says they must 'recover' the gasses before working on the system. Freeze-12 and others similar will hopelessly contaminate their recovery tanks and equipment, costing many $$$$ to clean up. If you do your own work, fine. If you don't, you're in for a search to find someone that will service the car after you add the stuff yourself. Call around to your local shops about possible service before you buy a freon substitute- maybe you'll get lucky.
Jack, thanks for your input. I realize that some will do their own AC work using Freeze-12 and like you say they may end up being on their own to support the system in the future. In my case, I selected a shop that recommended using Freeze-12 for my situation. Doing this provided certified professional techs to service the system and to support the system in the future. The shop is also a certified MACS member http://www.macsw.org//AM/Template.cfm?Section=Home
I was surprised how many shops in my area said their solution would be to use Freeze-12. This might be unique to the Southeast because it is not inhabitable without AC.
Mike