Also Called: Unrefined or mildly refined baseoil; [A complex combination of hydrocarbons produced by a treating process to remove acidic materials. It consists of hydrocarbons having carbon numbers predominantly in the range of C20 through C50 and produces a finished oil with a viscosity of at least 100 SUS at 100 °F (19cSt at 40 °C). It contains relatively few normal paraffins.]; Distillates, petroleum, chemically neutralized heavy naphthenic [Unrefined or mildly refined baseoil];Distillates, petroleum, chemically neutralized heavy naphthenic;Distillates (petroleum), chemically neutralized heavy naphthenic;[A complex combination of hydrocarbons produced by a treating process to remove acidic materials. It consists of hydrocarbons having carbon numbers predominantly in the range of C20 through C50 and produces a finished oil with a viscosity of at least 100 SUS at 100 å¡F (19cSt at 40 å¡C). It contains relatively few normal paraffins.];[A complex combination of hydrocarbons produced by a treating process to remove acidic ;[A complex combination of hydrocarbons produced by a treating process to remove acidic materials. It consists of hydrocarbons having carbon numbers predominantly in the range of C20 through C50 and produces a finished oil with a viscosity of at least 100 SUS at 100 °F (19cSt at 40 °C). It contains relatively few normal paraffins.];Distillates (petroleum), chemically neutralised heavy naphthenic;Unrefined or mildly refined base oil (A complex combination of hydro carbons produced by a treating process to remove acidic materials. It consists of hydrocarbons having carbon numbers predominantly in the range of C20 through C50, and produces a finished oil with a viscosity of at least 19 10-6 m2.s-1 at 40 °C. It contains relatively few normal paraffins.);Distillates (petroleum), chemically neutralized heavy naphthenic, Unrefined or mildly refined baseoil