View Full Version : PAG46 or SEZ32
aliionut
02-04-2010, 07:52 AM
Charge an auto compressor with SEZ32 (Polyol Esters-POE) oil instead of PAG46 (Polyalkylene Glycols-PAG) can create problems ?
Brian_UK
02-04-2010, 04:56 PM
What is the refrigerant being used?
aliionut
03-04-2010, 08:27 AM
It's an automotive air conditioning compressor and use R134A
cadillackid
05-04-2010, 06:58 PM
I run ester oil in my Automotive Applications using the Sanden 508 series compressors with No issues...
its especially nice for a retrofit where you can not get a complete 100% flush of oil out of the system unless you were to completely disassemble toe customers dash panel, etc..
whereas PAG would cause issues if left with older mineral oils....
I will say that POE is more moisture prone than PAG and often automotive shops dont do a proper vac-down.. (they use air-sourced Vac pumps and only leave them on for 5-10 minutes)...
-Christopher
lowcool
06-04-2010, 04:06 AM
to my knowledge sanden has been manufacturing compressors with pag oil for a few years at least.something to do with tighter machine tolerances and also under the impression that it is more hydroscopic than our usual oils.
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