pressure test with CO2

[Yuri B.]

Hello !
What damage may impair to a system with poe oil pressure test with argon/CO2 mix instead of nitrogen ?

[Yuri B.]

To avoid looking it as a propaganda of wrong methods I better put it so : what damage to a system using poe oil as lubricant may impair a pressure test with argon, or argon/CO2 mix in case nitrogen is unavailable?