I would call roadside assistance and have them bring the car back to dealer. Drain tank and start over. Just kidding. You're fine. Like others have said. Go light on the pedal and fill it up with premium as you go. No issue

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2013 F10 ///M5 (ED 11/2)
2013 X6 50i Msport
2008 Smart
2012 Jeep Wrangler Unlimited