2018 Sorento SX AWD w/Technology Package
this might help:I wouldn't know where to go to buy non top-tier fuel so that's not an issue.
TOP TIER™ Gasoline Brands (toptiergas.com)
there's a brand listing based on country and location. Amoco/BP, Shell, Texaco, Costco (surprise!) and Chevron are all safe bets here.