quote:
Originally posted by BOBISTHEOILGUY:
Schaeffers mineral and blends use a group I not a group II.
Many fail to understand, These groups are not #'d in respect to quality which appears many think that if it's group II, it' better than group I. Not true.
Bob, Schaeffer's own spec sheets for the 7000 5w30 and Micron Moly 5w30 say they use Group II and Group II+, and the wording of the 10w30 spec sheet ("hydroconverted") would indicate a Group II is used in that blend as well.
The saturate and aromatic specs for a Group II base oil do indicate that it is "better" than a Group I.