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Subject:Re: What colour is freon?
From:Larry Stichweh
Date:Mon, 13 Jan 1997 21:08:16 -0600

dfuller@jeeves.ucsd.edu wrote:
> 
> Sure sounds like auto tranny fluid to me.  If the torque converter
> seal starts going it can get slung ALL over by the torque converter (a
> condition I may be looking at right now).  I have in the past used a
> red dye to track down a freon leak, however.
> 
> On the subject of refrigerant leaks, has anyone else noticed oil
> weeping from the A/C high pressure line in evenly spaced spots along
> the hose (about an inch apart, all around the hose) as if it were
> designed to do this?
> 
> Dan

Refrigent lines, especially the high pressure ones will loose their 
resistance to diffusion of refrigerent through the rubber with age.  The 
oily appearance is a sure sign this is happening.  Eventually you will 
have to replace these lines.  No this is not a design feature, just a 
fact of deterioration with age.  Sort of like the human body with age.

Larry