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Originally Posted by Kestas
Autofrost is a blend of many different refrigerants.
55% R-22
41% R-142b
4% isobutane
I vote for duracool. It is an HC refrigerant, made up from a blend of propane and butane. It cools as well as R-12 and actually uses a lower head pressure than R-12.
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It may cool well but its illegal most places due to flamability...and just how well will it carry the oil...my understanding was while Propane and Butane woudl function as a refridgerant it can't carry the oil needed to lubricate the pump.
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Proud owner of ....
1971 280SE W108
1979 300SD W116
1983 300D W123
1975 Ironhead Sportster chopper
1987 GMC 3/4 ton 4X4 Diesel
1989 Honda Civic (Heavily modified)
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Section 609 MVAC Certified
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"He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche
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