Lubricant blends and finished gear oils comprising a lubricant base oil
fraction derived from highly paraffinic wax, a petroleum derived base
oil, and a pour point depressant are provided. The lubricant base oil
fraction derived from highly paraffinic wax comprises less than 0.30
weight percent aromatics, greater than 5 weight percent molecules with
cycloparaffinic functionality, and a ratio of weight percent of molecules
with monocycloparaffinic functionality to weight percent of molecules
with multicycloparaffinic functionality greater than 15. The petroleum
derived base oils comprises greater than 90 weight percent saturates and
less than 300 ppm sulfur and is preferably selected from the group
consisting of a Group II base oil, a Group III base oil, and mixtures
thereof. These lubricant blends have surprising low Brookfield
viscosities at -40.degree. C.