ChrisA" There are different forms of hydrocracked oil. Group III is more hydrocracked that the Group II or Group II+. The base oil in the Motorcraft is Group II+ that is made at the Excel Paralubes refinery in Louisiana. This refinery is co-owned by Pennzoil and Conoco. Conoco is the one that makes the Motorcraft oil. They all have a different additive package. The Group III is a better product. Is it as good as a PAO OR Ester synthetic? The debate will go on for a long time about this.