LJ78 prado AC system information

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Feb 7, 2006
Edmonton, AB
hello all,

summer is on its way and i need to get my AC system operational.

When i switch on the AC, the dryer window shows white milty residue with small bubbles flowing through it. There is no cooling whatsoever.

I have the following questions
1. What is the refrigerant capacity for the system in lbs or oz?
2. In the attached photo, is the black cap the low-pressure hose, the red cap is the high pressure one?

I see some forum members have used this product, perhaps they can chime in their experience.
If i want to use duracool's system seal, can it be used in combination with R12a.

the 2nd picture is the back of the compressor.

thank you all,
Ali C.
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