Thanks for the input.

From the EPA list, it LOOKS like the system was converted to R134a. I will look at the fittings closely tonight. The reason I am even looking at the gas is that there is a really smudged sticker saying something about adding dye to the system, but I could not make out the refrigerant type.

I have not yet looked at the electrical connections to make sure that the compressor clutch is getting powered. That is a weekend job. If it does need gas, I am taking it to a shop. I just did not want to go in completely ignorant and have a guy scam me into doing a R134a refit if it was still using R12.

__________________
"I have no convictions ... I blow with the wind, and the prevailing wind happens to be from Vichy"

Current
Monika '74 450 SL
BrownHilda '79 280SL
FoxyCleopatra '99 Chevy Suburban
Scarlett 2014 Jeep Cherokee
Krystal 2004 Volvo S60
Gone
'74 Jeep CJ5
'97 Jeep ZJ Laredo
Rudolf ‘86 300SDL
Bruno '81 300SD
Fritzi '84 BMW
'92 Subaru
'96 Impala SS
'71 Buick GS conv
'67 GTO conv
'63 Corvair conv
'57 Nomad