How much freon does the 94 Dodge Cummins hold? And I have Ester oil, would this be a good choice, and how much oil? Thanks, Artie

 

Refrigerant is the more acceptable term, as freon was tied to R12. Not sure on the amount, but the oil does matter. Need to find out what compressor is on the truck.

 

Sanden SD7H15

 

I was told to use pag oil

 

Pag 46. What all are you replacing? Dryer and office tube? Compressor too?

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Ester oil is for York style compressors,look kind of like lawnmower engines. Sanden compressors require pag oil.

 

well... It's the Sanden compressor, and it's plummbed into a 01 F350 with the Cummins spinning the compressor. This has been the worst part of the conversion! And it's last on my punch list, besides some soundproofing....

 

what freon are you using? the oil needs to be for what freon you use. some oil will not migrate with wrong freon.

 

R134a, and I will be replacing the Ford's condenser, dryer, and the Cummins compressor was on my donor trucks engine. The compressor sounds ok and is free, and the oil was clean, I didn't remove the compressor so I don't know if the system worked, or how much oil was lost? Thanks for the replies! Artie

 

You lose oil when you change condenser as well, I'd just evacuate everything and start with the correct amount that way you know you have enough in it.