Nowadays, any oil that meets the API SF or better spec, in other words, just about any oil you'll find on the shelf, will do the job. There are people who will defend "their brand" against all comers, but that's mostly marketing, not based on critical differences.
I've always ran Pennzoil, since 1963, in everything from flatheads to big blocks, and have not experienced an oil related engine failure. The one time I did run Valvoline (in a 66 425hp 427 Vette), I lost an engine, but that was due to a rod bolt breaking, not the Valvoline. My Dad has always run Quaker State (he's 83) and hasn't wasted any engines....
The main concern is that you change it frequently (unless you run synthetic oil), never let it run low for extended time, and use good oil filters...