| 摘要 |
A base oil having an unexpectedly low dynamic viscosity as measured by ASTM D5133 test method comprises a blend of about 65 to 97.5 wt% of a paraffinic oil having a VI of 130 or greater, a Kv @ 100~C of about 3.8 cSt or greater and a pour point of - 15~C or less and an ester of lubricating viscosity of from about 35 to about 2.5 wt%. The base oil is further characterized as fre e of added viscosity modifiers.
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