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NEW R1234yf fitting at top, buy end 2013 production Pruis should start using the new refrigerant, old R134a bottom . I'm ready for the first car with the new refrigerant R1234yf. You must have new gauges, NEW hoses, NEW recovery machine, NEW recycling machine , NEW refrigerant analyzer, NEW PAG oil not the same PAG as used with the R134a. NEW hybird compressor oil not to be use with the same equipment that was used with the PAG oil. So double all your equipment. It's going to be vary VARY expansive the first years . Even NEW LAWS, RULES, on handling, using, buying, and equipment.