Whichever is cheaper. Although most of my friends are known to go into a Walmart at least once in a while, so I'd probably tell me to get SuperTech, and to spring the extra buck to get the full synthetic one.
Why not Quaker state high miles . I use it for many years . It’s just harder to find 5w30 or 5w20 at my local Walmart . They always out . That only reason I don’t use any more unless when time for oil change and they have 5w30