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Which R-12 oil to use?
Posted to HVAC Forum on 1/5/2000 5 Replies

I have a question. I called and ordered some R-12 oil from my supplier, and they sent me two types. One was #12323913, AC Delco #15-116, and said 300 viscosity.

The other one was #12301108, AC Delco #15-117, and said 525 viscosity. Both are mineral oil. Bei... Login to read more.

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