No, the have always said the minimum octane for the 6.2L was regular, but the power numbers they have advertised was done with premium fuel. You can use both octanes due to the VCT, but will have different power numbers.
Right, but the footnotes about using higher octane to get the posted power numbers is no longer there. Maybe that is just an oversight on their part. But it is odd for them to be making these mistakes on marketing material that shouldn't have changed in years.