Redtek supposedly has the same thermodynamic properties as r12, this means overall its refrigerant properties are better. In theory it ought to make a better refrigerant at lower pressure than the r134a systems. I was also charging the system for the first time, in my experience there is a high likely hood when trying to revive a system that has been down for so long there is a good chance I can vent my refrigerant or have to take apart the system. Redtek decays in the atmosphere in about a year, r134a in about 10 years, and R12 in about 100 years. From an environmental standpoint its a little better that way. While r134a is common in stores still I did a bulk order of redtek and have quite a bit of it on hand. The cost of the redtek per can online was cheaper than I can get r134a for in a store locally. It would be very interesting to be able to compare temps between two system on the same day. Or the same system on a day with the same temps. Overall I am trying to evaluate the efficacy of redtek over r134a, I suspect it will mostly be anecdotal, but I have seen others report good results with redtek in r134a systems.
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