I am replacing the AC compressor on my 2000 Dodge
Caravan SE 3.3 liter. The Haynes book for this car,
the compressor fact sheet and NAPA are not able to to
tell me exactly how much PAG oil to include. The MFR
says  to keep the factory assembly oil in the
compressor after assembly.
FYI, this will be a dry run to someday rehabilitating
the Vanagon /Subaru conversion in my driveway. TIA
George '87 Van O'White in damp Grand Rapids.