Can You Use R1234yf In A R134a System? | What Breaks First
No, an R134a A/C setup is not a safe direct fill for R1234yf; the refrigerant, fittings, oil, labels, and service process differ. Can you use R1234yf in a R134a system? In most passenger vehicles, no—not as a straight recharge. The two refrigerants do the same job, but the system around them is not set up, […]
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