Distillates (petroleum), solvent- dewaxed heavy paraffinic; Base oil — unspecified (A complex combination of hydrocarbons obtained by removal of normal paraffins from a petroleum fraction by solvent crystallisation. It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C 20 through C 50 and produces a finished oil with a viscosity of not less than 19 10^-6 m^2.s^-1 at 40°C.