A 1996 Saturn vehicle will only use R134A refrigerant. I was a Saturn technician for years in Saturn Dealerships.
1.5 lbs or 0.68kg total charge for the R13a refrigerant
if its a manual yes. for an automatic i never try it but Saturn don't like to change its dam possible
This proceedure is covered in the chiltons Saturn book available at auto zone and ect.
Refrigerant is added to a 1997 Pontiac Grand Am by removing the cover on the low pressure coolant line and attaching a can of refrigerant. The valve on the can is then opened and the system will automatically pull the refrigerant in.
The only refrigerant you can legally use in your 2001 Saturn would be the 134-A
According to my repair manual the refrigerant is HFC134a.