QSUD is a great oil for the price; no doubt that SOPUS is likely steering excess GTL into QSUD. Even if they aren't, QSUD usually has a little more moly and boron than most, and is a little thicker in each grade. About the only downside is there are rarely rebates on this brand, but occasionally places like Menards will throw it on sale.
At an easy $20 any time at WM, along with a $6-9 FTG or FU, it's a no-brainer for 10k OCIs. Don't be a lemming and just follow the fickle masses on here with unfounded brand prejudices, QSUD is more than enough oil to get your vehicle (even from brand new) all the way to 300k and beyond.