Catalytic process for manufacture of low pour lubricating oils

A process for hydrodewaxing a petroleum fraction having a boiling point above about 550.degree. F., to produce a dewaxed lubricating oil base stock, comprising

• contacting a feedstock of said petroleum fraction, in the presence of hydrogen, with a supported catalyst composition comprising, in combination, about 20 to about 50 percent by weight of a support material;
• about 0.1 to about 3 weight percent of at least one Group VIII metal;
• the remainder being a porous crystalline silicate having a silicon to aluminum mole ratio, expressed in terms of the mole ratio of SiO.sub.2 to Al.sub.2 O.sub.3, of at least about 20, characterized by an X-ray diffraction pattern which is at least substantially identical to that of Table A, designated herein ZSM-22, wherein contact of said feedstock with said supported catalyst is undertaken under conditions including a pressure of from about 200 psig to about 3000 psig;
• a temperature of from about 260.degree. C. to about 482.degree. C.;
• a feedstock LHSV ranging from about 0.2 to about 20 and from about 500 and up to about 20,000 standard cubic feet of hydrogen per barrel of feedstock.