Spec sheet says Grp II+ base oil, but I have seen older posts saying the 5W30 has a Grp III base. Not that it really matters but my curiosity is up on this with all the Grp III publicity lately. I'm running the SL GF-3 version of this oil in a 1GR-FE Toyota engine and should have a UOA in a couple of weeks. (Although the latest VOA of this oil sure looks more like SM GF-4.) Thanks ahead of time for any info.