Well to be honest, Purolator or Fram doesn't make engine bearings or engine parts.
I think you guys are missing the point as well.
This is a technical article about the effect of oil films and oil film thickness verses bearing geometries.
I don't make my own base oils but use quality base oils provided by others, and it doesn't decrease the quality or performance of those lubricants.
"Never buy flowers from a monk; only YOU can prevent florist friars." Smokey