You'd have to repeat the same roadtrip at same time of year with your usual oil to make a completely valid comparison between oils. Highway miles are much easier on engines. However, I do agree that Castrol Edge Extended Protection (EP) is superior to Pennzoil Platinum (PP).
Pennzoil Ultra Platinum (PUP) has a great reputation and lubricates well (in spite of being thin per grade). Pennzoil Platinum (PP) is bad in wear tests I've seen. Castrol Edge Extended Performance (EP) is a much better oil than PP. There are also a few other brands of excellent EP oils you should consider (which others will recommend). I recommend Quaker State Ultimate Protection Full Syn (QSUPFS), which is an EP type oil.
QSUPFS has several advantages (IMO) including: It's a mostly GTL Shell oil, which makes it similar to PUP, except that QSUPFS is thicker viscosity per grade (than PUP or Castrol Edge EP), QSUPFS is a 20K oil a good price at Walmart. I think (IMO) that QSUPFS is superior to PUP & Edge EP, and QSUPFS costs less.
Though to be fair, Castrol Edge EP and Castrol Edge HM EP are also good prices at Walmart.
The main thing is to stop using PP. It's not a good oil, IMO. Certainly not good for the price. There are many good oils that are better than PP, including ones that cost less.
If you want to catch fine metal wear particles that your oil filter can't, buy a pair/set of filter magnets and put then on your oil filter.
https://www.shopfiltermag.com sells them in pairs/sets.
I also suggest upgrading your filter to a NAPA Gold, Oreilly Microgard Select, or any other autostore housebrand premium line of filter made by Premium Guard, or get Premium Guard EX, or Pentius filter. They filter finer particles, have thicker cans (especially NAPA Gold), and have pink silicon valve seal and gasket for extended OCI.