A refrigerating machine oil composition 1, wherein said fatty alcohol is {HEAD ~ at least an alcohol} selected from {TAIL ~ a group} consisting of n butanolandn pentanol 
A refrigerating machine oil composition 1 , wherein said fatty alcohol is { HEAD ~ at least an alcohol } selected from { TAIL ~ a group } consisting of n butanolandn pentanol
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH