| abstract |
Provided is a refrigeration machine oil composition having good lubrication characteristics that can sufficiently reduce friction and prevent seizure between sliding members even when a base oil containing a low-viscosity oil is used, by a refrigeration machine oil composition containing a base oil that includes a mineral oil, (A) at least one selected from specific neutral phosphoric acid esters and amine salts thereof, and (B) at least one selected from specific acidic phosphoric acid esters, acidic phosphorous acid esters, and amine salts of these, the 40°C kinematic viscosity being 1.0-6.0 mm2/s. |