Not hygroscopic: unlike other oils they do not absorb moisture from the air.
Can also replace the different PAG oils currently used for R134a*: you now only need to stockpile one oil instead of three.
Has already been successfully used for 15 years.
Contributes to an increase in air conditioning performance.
No adverse effects on components of the air conditioning cycle (also applies to use in air conditioning service stations / confirmed by manufacturer using the sealed tube test compliant with the ASHRAE 97 standard)