I had Freeze 12 put in my Ford Escort a couple of
years ago.  After a year of not getting it to work--
not cold enough, I went back to Freon.

I would have gone with Autofrost, but could not
find any shop around here using it.

For more information than you want about alternatives
to Freon, and why Freeze 12 can't be as cold, check
   http://www.autofrost.com
and the links there.  George Goble of Purdue University
figures it all out....  ;-)

                                Richard A. Jones
                                Boulder, Colorado
                                '81 Vanagon  Mr Bus
                                (WD60 airconditioning!)