Which Refrigerant Has the Highest GWP? Among the refrigerants and substitutes listed in the EPA’s current Technology Transitions GWP reference table, HFC-23, commonly identified in refrigeration as R23, has one of the highest published 100-year GWP values at 14,800. Among listed refrigerant blends, R508B is also extremely high at 13,396....

What Is the Lifespan of R1234YF? R1234YF does not have a normal replacement interval like engine oil, coolant, or brake fluid. In a properly sealed automotive air-conditioning system, the refrigerant is circulated repeatedly and is not consumed during normal cooling. That means the original charge can remain usable for many...

How Much Does It Cost to Recharge R1234YF AC? For many U.S. vehicles using R1234YF, a professional AC recharge commonly falls around $250 to $500 or more in 2026 when the job is a straightforward evacuate-and-recharge service without a major repair. Current national consumer-repair data places newer R1234YF vehicles in...