I run the middle grade around here (89-91) in TN mostly, but every third tank or so I run (93). It’s hard to say whether it runs better with the 93 since my foot gets a little heavier after those fill ups. I took my truck out west a couple months ago and was shocked at what they call premium octane.
I’m not interested in the super plugs, since I would imagine the fine Engineers at Ford have dialed in the proper heat range for the Raptor plugs for a stock engine. That thread kind of reminds me of the many weep hole posts in the past.
Oh let’s just leave everything stock then cuz the manufacturer always gets it right