I have a 2005 caravan that has 42000 miles so the warranty is up,Something hit the condenser put a hole in it so i installed a new condenser today put a vacuum on it and held 30 the label on the van says nd8 pag compressor oil so i put in 4 oz of 150 iso high viscosity pag oil and 2 can of 134A my question is that the right pag oil and is that the right amount?