<p>A process oil for rubber, which consists of an extract (A1) obtained by subjecting a deasphalted oil prepared by deasphalting a vacuum residue that is prepared from paraffin-base crude oil and that has a 1 vol % distillation temperature of 380°C or above to the first solvent extraction to obtain a raffinate and an extract and subjecting the raffinate to the second solvent extraction and/or a raffinate (A2) obtained by subjecting the extract obtained by the first solvent extraction to the second solvent extraction and which has specific properties. The process oil can give characteristics equivalent to those of conventional aroma oils to rubbers and is free from the problem of carcinogenesis and therefore excellent in safety, while it can be manufactured without any change in the process of manufacturing lube base oil as by-product.</p>
