The current gas r1234yf ,is presenting major problems within the industry. It may have a very low Gwp ( global warming potential), but is proving difficult to stop it leaking from car ac systems . I’ve seen cars not 2 years old where gas has leaked . Another problem regarding cost , is the fact that the manufacturers of the gas , Honeywell, have a virtual monopoly on production . Although the access ports on cars with this new gas are different to r134a , this old style gas works perfectly ok in the newer systems installed with the YF . Trust me , I’ve tried it.
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