Ahh, thank you. So I take it you are not a fan of the Pennzoil natural-gas-to-oil type of oils?
In my opinion viewed in isolation it's superior to traditional GIII Base as to it's natural attributes. As to the Platinum Series it's a bit shear prone in some engines. Doesn't make it a bad oil for others. That's about the formulation though not a natural attribute of GTL (It's not shear prone itself).