A method for lubricating a surface of a magnetic recording disc according to claim 25, 26 or 28, wherein said lubricant includes said oiliness agent, and said oiliness agent is selected from the group consisting of: Cn H2n+1 COOH and (CH2)n (COOCm H2m+1)2 wherein each of n and m is an integer of 1 to 30, respectively. 31.