What oil to use in a R-12 system?

resq302

Hi,

I am thinking about topping off my freon in my R-12 system. Before I got adding anymore R-12 to the already charged system, I want to give it a boost of oil charge so the system doesnt seize on me. What oil is used for an R-12 system?

Any help would be greatly appreciated.

Thanks,
_________________
Brian
Morris County, NJ

1970 El Camino SS 396 (TRUE SS)
AACA Senior Gold Winner, 2006 Concours d'Elegance Star Award winner
1969 Dodge Charger 383 HP, 4 spd console, AACA Senior Gold Winner

acauth1 · Posted: Tue Sep 02, 2003 6:14 pm Post subject:

Mineral oil, you may also use Ester oil.
_________________
El Camino Central Founder/AdministratorAuto A/C & Electrical Shop Owner, ASE Master

resq302 · Posted: Tue Sep 02, 2003 6:17 pm Post subject:

Is there a certain number for the Ester oil? If I remember right from the last time I saw them at a parts store, they had different numbers of Ester?
_________________
Brian
Morris County, NJ

1970 El Camino SS 396 (TRUE SS)
AACA Senior Gold Winner, 2006 Concours d'Elegance Star Award winner
1969 Dodge Charger 383 HP, 4 spd console, AACA Senior Gold Winner

acauth1 · Posted: Tue Sep 02, 2003 7:57 pm Post subject:

You're thinking of PAG oil, Ester is Ester.
_________________
El Camino Central Founder/AdministratorAuto A/C & Electrical Shop Owner, ASE Master

engineer · Posted: Tue Mar 30, 2004 1:55 pm Post subject:

use r-12 mineral oil for the system. Do not use ester or PAG in any R-12 system. the oils will react together and gum up.

acauth1 · Posted: Tue Mar 30, 2004 2:02 pm Post subject:

engineer · Posted: Mon Apr 05, 2004 2:53 pm Post subject:

interesting, mixed the two together on the bench and then measured Brokkfield viscosity and it went very thick. Not sure how it would react at cold temperatures. Don't have a cold box to try it in. Can you send me a link to SAE location where it discusses using the oil together? Thanks