150 is low, but charging based on weight per manufacturer specs. Slight overcharges with this gas have a very negative effect on cooling. Either way, i wont be making any adjustments until i get more product. As for the oil, pag or ester dissolve completely in this gas. It is not dragged through the system like r134. As best i can put it, it become a fogging type of oil and promotes superior lubrication regardless of pressure. Thats just the nature and simplicity of the gas. Hard to argue with a silent compressor. It has also been recommended to go with a heavier weight oil because of this effect.

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airedale2 Welcome to Texas
1984 MB 300D 266,000
1993 Nissan PU 271,000
2002 Tahoe 122,000
2004 VW TDI 75,000