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