Changed out A/C compressor and dryer

Tiny
JLMILES
  • MEMBER
  • 1997 CHEVROLET ASTRO
  • 4.2L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 15,000 MILES
How much pag oil and Freon? It has front and rear A/C. Should I put a little pag oil in the dryer too?
Friday, June 7th, 2019 AT 2:56 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,772 POSTS
Welcome to 2CarPros.

Here is the information you needed:

Polyalkaline Glycol (PAG) Refrigerant Oil

Front A/C System. 227 ml (8 fl oz)
Front & Rear A/C System. 298 ml (11 fl oz)
Compressor (drain and measure)
- If less than 30 ml (1 fl oz) drained: add. 60 ml (2 fl oz)
- If more than 30 ml (1 fl oz) drained: add. 30 ml (1 fl oz)
Accumulator. 105 ml (3.5 fl oz)
Evaporator. 90 ml (3 fl oz)
Condenser. 30 ml (1 fl oz)

Let me know if this helps.

Take care,
Joe
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Friday, June 7th, 2019 AT 11:13 PM

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