<VV> Re:A/C recharge

[Frank DuVal]

Stick with R-12 or R-134a. As said in earlier replies, no professional  
can work on a system with blended products unless they have dedicated 
equipment to that particular product for evacuating and recharging the 
system. So if you fill your system with Freeze 12 and go out of town and 
the A/C goes on the fritz, who can work on it? Only a shop with 
dedicated Freeze 12 equipment. The system cannot be evacuated with an 
R-12 machine or a R-134a machine. First, it would contaminate the 
machine's storage tank, and in the case of an R-12 machine this would 
mean 100's of $$$$ of lost product in the storgae tank, second a BIG 
fine  when the shop is caught.

Read up and ask a lot of questions when doing a conversion from R-12 to 
R-134a. It can be done well. Only a few vehicles have real problems with 
R-134a conversions.

Frank DuVal

64 Spyder Conv.

>Hey gang, 
>
>The hot weather is coming and I need to recharge my AC.  I will attempt to 
>reseal the seals, etc. to avoid tearing down the system.  However, my question 
>has to do with the replacement coolant that has been recently introduced.  
>Enviro-Safe, Freeze 12 and MacFreeze (No, that isn't a McDonalds dessert.) all 
>claim to be replacments for the original R12 freon.  Some claim to be superior as 
>far as thermal and environmental characteristics.  Another benefit is their 
>cost of purchase and the avoidance of retrofitting the system to R134 coolant.  
>Does anyone have experience with these products?  Any recommendations?
>
>Thanks in advance,
>Doc
>
>
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