This disclosure is directed to an additive package for a lubricant composition that provides improved fluoropolymer compatibility. The additive package comprises a halide seal compatibility additive and a second seal compatibility additive. The disclosure is also directed to a lubricant composition comprising a base oil, a halide seal compatibility additive, and a second seal compatibility additive. The halide seal compatibility and the second seal compatibility additive improves the fluoropolymer seal compatibility of the resultant lubricant composition.

A method for producing hydrocarbon solvents having a sulfur content of less than 10 ppm, aromatic hydrocarbon content of less than 500 ppm, an initial boiling point higher than or equal to 300? C. and final boiling point lower than or equal to 500? C., for a fraction interval of a maximum of 100? C., and pour point lower than ?25? C. according to the standard ASTM D5950, comprising of the following steps of: dewaxing of a hydrocarbon fraction having initial boiling point higher than 300? C. derived from the distillation of a gas oil fraction, hydrodearomatization of all or part of the dewaxed effluent, in the presence of a catalyst comprising nickel on an alumina base, at a pressure ranging from 60 to 200 bar and a temperature ranging from 80? C. to 250? C., recovery of the dewaxed and dearomatized fraction, distillation in fractions of the dewaxed and dearomatized fraction, recovery of at least one 300? C.+ fraction having pour point lower than ?25? C., this fraction having a distillation interval lower than 100? C.

A lubricant composition improves a performance of reducing a formation of compressor deposit. The lubricant composition also ensures low temperature properties of the lubricant composition. The lubricant composition includes 14 mass % or more of a fraction having a boiling point of 500 C. to 550 C. and 5 mass % or more of a fraction having a boiling point of over 550 C.

Methods are provided for upgrading disadvantaged feeds for use in lubricant base stock production. A disadvantaged feed can be upgraded by hydroprocessing the feed to form a hydroprocessed bottoms fraction. The hydroprocessed bottoms fraction can then be used as a feed for forming Group I and/or Group II lubricant base stocks, optionally in combination with a conventional feed for lubricant production. The remaining portions of the hydroprocessing effluent can optionally be used for FCC processing and/or for other conventional applications of naphtha and distillate fractions.

Compositions are provided for lubricant base stocks produced from feeds such as vacuum resid or other 510 C.+ feeds. A feed can be deasphalted and then catalytically and/or solvent processed to form lubricant base stocks, including bright stocks that are resistant to haze formation.

A composition, including 40-50 wt-% C14 paraffins, based on the total weight of the composition, and 35-45 wt-% C15 paraffins, based on the total weight of the composition, wherein the C14 and C15 paraffins are produced from a biological raw material.

A refrigerating machine oil containing a hydrocarbon base oil having a 90% distillation temperature of 270 C. or lower.