2016 Civic LX A/C Recharge
 

Hello,

I have 2016 civic and I want to add refrigerant because it's not cooling as well as it used to.
Noticed that it's using a new refrigerant R-1234yf.
Question 1: Can the R-134a refrigerant be added instead?
Question 2: Can I use the same hose kit that comes with those R134a kits, or do I need to buy a new hose kit to fit in the port?

Thanks