Drove a collective 678K miles on various cars with the least mileage being 50K the most being 317K using Mobil 1 0w-40 (and for a few years Mobil 1 5w-50) oil. Zero engine issues. Good oil.I've gone 20,000 miles on my daily drivers using Amsoil. Got rid of them when they went over 200,000 miles and had zero issues. Amsoil is good stuff.
Still wouldn't recommend Mobil 1 for one of the SRT engines. My advice is to always use what the factory says to use.