Keep in mind that Mobil Super is not the same grade as Mobil 1. Mobil labels them both as synthetics, but that is a topic of its own. From Mobil’s FAQ:
“Mobil 1™ is part of our line of advanced full synthetic oils. It uses the latest in additive and base oil technologies that provide superior protection, and
outperforms Mobil Super™ Synthetic. Consider that Mobil 1 motor oils are chosen by many of the world's leading car manufacturers and more NASCAR® teams use Mobil 1 than any other motor oil brand. Mobil 1 synthetic oil has provided exceptional performance throughout its 40+-year history. Our
Product comparison chart shows how these oils differ.”
Since Mobil 1 and Mobil 1 Extended Performance (my previous favorite oil) are not Chrysler certified, many of us are running Pennzoil Ultra Platinum (similar to M1 EP) or Pennzoil Platinum (similar to M1).