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Agreed. I have replaced many brands of failed compressors still under warranty over the past 25 years. I would expect that if the additive was effecting lubrication both compressors would become...

I pressume it sticks to all metal parts of the compressor. If this causes a lack of lubrication I would expect to replace compressors after 4 years with it in the system!

Have icecold in my home and workshop Daikin inverter R22 6kw split systems going on 4 years now with no mechanical issues. I can't comment on power savings as the units don't run on time clock but...

Hey lucky131 if your still out there.I have reed alot about PROA and have seen compress shield in action with the same out come!

But historical evidence shows PROA to do more harm than good.

I...