I received my new compressor, had asked the vendor if it was oil charged, got 2 answers, no, yes 8 oz. Asked Denso customer service for compressor 471-0232, they tell me it comes charged with 4.8 oz and that I'm supposed to drain it all and add back 2 oz. That seems low:

I'm flushing the entire system and replacing the drier, so technically I should not have any if much oil in the system. from what I have gathered most of these systems require 8oz of oil total.

So which is it? Any ideas how much oil I should add in total?

TIA

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Stable Mates:
1987 300TD 310K mi (Hans)
2008 Jeep Grand Cherokee OM642 165k mi (Benzrokee)