I think it has to do with volumnes of the condensers. If the PF condenser has the same volumne as the old condenser, no adjustment of oil or refrigerant qty is required? What kind of oil are you putting in? When I re-do with R12, i will prob use Behr Hella PAO 68, a non hydroscopic synthetic oil compatible with most refrigerants, incl 134 & 12..

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85 300D turbo pristine w 157k when purchased 167,870 July 2025
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked