Distillates (petroleum), solvent-refined hydrogenated heavy; Baseoil — unspecified; [A complex combination of hydrocarbons, obtained by the treatment of a hydrogenated petroleum distillate with a solvent. It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C19 through C40 and boiling in the range of approximately 390 °C to 550 °C (734 °F to 1022 °F).]