MACHINE AND OIL PRODUCT

The invention relates to a machine and an oil product and aims to inhibit hardening of rubber members at the same time of using the machine. The machine according to at least one embodiment of the present invention comprises a rubber material to be supplied with an oil product containing a softener, wherein an absolute difference between a solubility parameter of the softener and a solubility parameter of the rubber material is 1.7 or less. The machine having a communication portion connecting the rubber material and an outside of the machine, and is configured to supply the oil product from afirst end of the communication portion to a second end of the communication portion. 本发明涉及机械和油制品。本发明的目的在于在使用机械的同时抑制橡胶构件的硬化。本发明的至少一个实施方式的机械包含接受包含软化剂的油制品的供给的橡胶构件，所述软化剂具有与所述橡胶构件的溶解参数值之差的绝对值为1.7以下的溶解参数值，其中，所述机械具有将上述机械的外部与上述橡胶构件连通的连通部，将上述油制品从上述连通部的一个端部供给至上述连通部的另一个端部。