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Bought a new oem Sanden SD709 compressor for my 92 D350. Compressor was shipped with only residual oil in it. I flushed my old system out and replaced the TXV and dryer along with cleaning everything else. Trying to figure out how much mineral oil to put into the new compressor. Anyone know. I'm guessing somewhere between 4 and 8 ounces. Staying with R-12 as I have alot of it still on the shelf and know it will work better in the system rather than converting it over.
 

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Good question on the oil capacity. I do not even know what the Freon capacity is for R-12.

I do know that a good oil is BG Frigi-Quite. It comes in an 8 oz bottle, or two oz bottles. It must be added before you pull vacuum on the system. Also, Nylog is great stuff for the o-rings.
 

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This is one of the guides that I use for oil capacity when I repair air conditioners.

http://www.rtitech.com/downloads/News/Oil Chart - Compressor.pdf

SD Service Guide
http://www.sanden.com/originals/images/SD_Service_Guide_Rev.2.pdf

If you are using R-12 be sure to drain the compressor and refill using the appropriate oil.

Also for those that did not know, when flushing you system Never flush through the compressor.

Each component in the system when replaced requires a specific amount of oil when repaired separately.

I will have to look through my notes to see how much oil I added after it was flushed.

Jim
 
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