For my own clarification ..

All of these replacement refrigerants [ other than R134a ]

are flammable.  RedTek, DuraCool, Freeze 12 [?]

That is why their certification by DOT is not the same as R134a.

        ----------
        From:   Vanagon Mailing List on behalf of Kim Brennan
        Reply To:       Kim Brennan
        Sent:   Thursday, June 17, 2004 2:40 AM
        To:     vanagon@GERRY.VANAGON.COM
        Subject:        Re: AC concerns

        Technically, no, you don't have to change the oil. Officially, in
the
        US, yes you do.

        The USDOT, requires that vehicles using Freeze 12, Duracool, HC 12a
and
        other similar products must first have been converter to R134a
fittings
        and oil and be properly labeled.

        However, as I have commented before, and Glen Smith echos, these
other
        freons are GREAT in Vanagons.