Lubricating oils (petroleum), C20-50, hydrotreated neutral oil-based (10C)
Lubricating oils, petroleum, C20-50, hydrotreated neutral oil-based
A complex combination of hydrocarbons obtained by treating light vacuum gas oil, heavy vacuum gas oil and solvent deasphalted residual oil with hydrogen in the presence of a catalyst in a two stage process with dewaxing being carried out between the two stages.  It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C20 through C50 and produces a finished oil with a viscosity of approximately 32cSt at 40.degree.C (104.degree.F).  It contains a relatively large proportion of saturated hydrocarbons.