The "system" needs approx 5.5-6oz OF PAG 46 oil if you are converting to R134a.

That type of condenser need less refrigerant than the original style. I would start with 1.5 lbs of R134a.

Of course a R107 chassis never had real cold a/c on a hot day.

But make sure the fresh air door close all of the way ON both sides in MAX a/c setting.

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