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Type and amount of oil for 1990 Mazda 929 S

dan116 on Wed May 27, 2009 3:37 PM User is offline

Year: 1990
Make: Mazda
Model: 929 S
Engine Size: 3.0 DOHC
Refrigerant Type: R134A
Ambient Temp: 95
Pressure Low: 31
Pressure High: 210
Country of Origin: United States

I own a 1990 Mazda 929 S with a DOHC 3.0 engine. Last season I converted to R134A. I flushed all lines and the condenser with Hecate safe flush (I did not flush the evaporator). There was no debris in the system. I replaced all o-rings and the receiver/dryer. I added 8 oz (system total) of Easter 100 oil w/ florescent dye to the system and did a deep long vacuum. This season I have a leak around the front seal of the compressor. High and low pressure is good and cooling is excellent. I am going to buy a remanufactured clutch/compressor and a new receiver/dryer from Arizona Mobile Air. My question is do I use POE oil again or do I switch to PAG oil? How much total oil do I put in the compressor if I do not flush? I will do a deep and long vacuum before adding refrigerant. Thanks

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Dan116

Chick on Wed May 27, 2009 3:55 PM User is offlineView users profile

Use AMA's BVA auto 100 ester oil, it's a very good oil, and all I use on retrofits.. Hope this helps..

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Chick
Email: Chick

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Freedoms just another word for nothing left to lose

dan116 on Wed May 27, 2009 4:01 PM User is offline

How much oil do I add to the compressor if I am also replacing the receiver/dryer? Thanks

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Dan116

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