This oil seems to have a weak additive package on paper, but it meets Dexos1 Gen3, which has some pretty stringent requirements.
I did an
idle fuel economy test comparing this PP 0W-20 D1G3 oil to the older PP 5W-30 D1G2 oil that had a lot more additives. I've added some more testing data since I made that post, and estimate the fuel consumption to be 5.5% lower, and friction 10% lower with the new formula. This is despite the newer oil having 40% less moly friction modifier, and 0 ppm boron vs 280 ppm.
This is an example of why more additive is not always better. Detergents that increase TBN increase friction, and will also compete with anti-wear and friction modifier additives, so adding more detergent than necessary can be detrimental. As I understand it, TBN is not as important as it once was due improvements in fuel standards, as well as emissions standards that reduce the amount of combustion byproducts that increase oil acidity.