how much refrigerant do i need to buy for factory 2.7 on 2003 Kia Optima

2003 kia optima 2.7 l

Asked by for the 2003 Kia Optima
2 answers
24 OZ of R134A refrigerant. Don't forget to put the system in a deep vacum For at least one hour, longer if you can.
That would be two 12OZ cans.
how much refrigerant do i need to buy for factory 2.7"