From the web sites FAQ section
Q: Does Castrol Edge contain Polyalphaolefins (a.k.a. PAO)
A: Castrol Edge is made from a proprietary combination of base oils, which include PAO.
So, it would seem that it has at least some "real" synthetic oil in it.
Q: Does Castrol Edge contain Polyalphaolefins (a.k.a. PAO)
A: Castrol Edge is made from a proprietary combination of base oils, which include PAO.
So, it would seem that it has at least some "real" synthetic oil in it.