Yep. I always liked Mobil1. I just think Castrol 0W40 and 0W30 are just bit better packages.One of the few companies that give you the zinc levels of their oils.
But rest of Mobil1 line up is IMO more robust than anything coming from Castrol or Pennzoil. Also, they have wider selection of oils. 15W50 for some track days? Yep. You want full racing? Yp. And we will even show you how much Zinc each oil has that we recommend for track, whether those are street oils or strictly racing oils.