Refigerant for a 2000 Lexus rx300 which has used HFC 134a

[Tony S.]

I own a 2000 Lexus RX300 and the AC hood label says to use HFC 134a refrigerant in the AC. What are you supposed to use now since HFC 134a is banned?

[Lexus Owners Club]

There are three replacement gases for R134a:

R-1234yf, R-152a, and R-744

More information here: https://www.techtownforum.com/knowledge-base/what-is-r134a-refrigerant-replacement/