Unless I feel like taking a walk through Wal-Mart, it now costs about $45 for 3 cans of R-134a. The cost to replace all of the o-rings on a 928 is about $2. I'm not going to take the chance.

 

Be extremely cautious about converting your old R-12 system to R-134a. Frequently, the new R-134a refrigerant will not circulate the R-12 oil and you will burn up your compressor. The R-12 mineral oil has chlorine contaminants that will destroy the R-134a PAG or POE special oil. The only way to reliably convert from R-12 to R-134a is to remove the compressor and flush out all the old oil with the new type of oil; then replace the old Receiver-Dryer or Accumulator with a new one; then flush out all the lines, the evaporator, and the condensor with special cleaner then vacuum to a steady vacuum; and finally charge with 70-80%, (by weight) of the original R-12 weight, with R-134a; and expect poorer cooling ability. It is much easier to keep the old R-12 system running IMHO

 

I've had Isceon49 in my car for over eight years. It's made by Dupont, it's non-flammable, it requires no conversion, and it's nice and cold.

 

Unfortunately, it is illegal to use it in the USA...

From the DuPont info:
"ISCEON® MO49Plus™ is also an HFC retrofit refrigerant for
R-12 in automotive air-conditioning systems. See the Retrofit
Guidelines for Automotive AC for more information."
"Note: ISCEON® MO49Plus™ is not available for automotive
air-conditioning in the U.S."

 

Rob is in Canada, so it might work for him.

 

Soooooo No One knows of any service shop that'll do R 12?? (Not in Canada for obvious reasons),

Really?

 

I know of two Greg's that do it.

 

And I know of one Rob that would love the excuse to head south for a visit, but I was hoping to find someone reputable closer to the border....

 

The "closer to the border" being the operative here, not the reputable...

 

I understand.