Wild. From Rick's EPA link above:

May hydrocarbon refrigerants be used to replace CFC-12, commonly referred to as "FreonŽ ," in cars?

No. It is illegal to use hydrocarbon refrigerants like HC-12aŽ and DURACOOL 12aŽ as substitutes for CFC-12 in automobile or truck air conditioning under any circumstances.

# May hydrocarbon refrigerants be vented?

No. Since November 15, 1995, the Clean Air Act has prohibited the venting of any refrigerant during the service, maintenance, repair, or disposal of air conditioning and refrigeration systems. When working on a system containing a hydrocarbon refrigerant such as HC-12aŽ or DURACOOL 12aŽ, the technician must recover the refrigerant into a suitable container and safely dispose of it.

The following 18 states ban the use of flammable refrigerants such as HC-12aŽ and DURACOOL 12aŽ in motor vehicle air conditioning, regardless of the original refrigerant: Arkansas, Arizona, Connecticut, Florida, Idaho, Indiana, Iowa, Kansas, Louisiana, Maryland, North Dakota, Oklahoma, Texas, Utah, Virginia, Wisconsin, Washington, and the District of Columbia.


Check out this URL (scroll to bottom) for a chart of which products are EPA legal or not:

http://www.epa.gov/ozone/snap/refrigerants/macssubs.html

Rick, thanks for the info! Great stuff.,

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