HFC substitute refrigerants containing POE lubricants seem to be the future of the industry.
I also believe that the HFC substitutes with their artificial lubricants (PEGs and POEs) are a poor alternative to HCFCs and mineral oils. Standard service and installation techniques with the new systems will ultimately result in more compressor failures and service problems. Therefore, when someone from Carrier Corp.'s public relations department contacted me about doing an article on the company's three-year-old line of air conditioners/heat pumps that don't use HCFC-22, I initially suggested that she find someone else to review the product line.