Any truth to the "fuse pull" to reset 2010 Camaro to high octane fuel/advance table? If Camaro SS was ever run on 87 octane fuel it's said that ecm won't return to high octane setting even when 93 octane is added so timing never advances for max performance. Fuses 5 and 20 are removed and replaced after enough time to bleed off power so it would lose all learned settings. Anyone confirm that this is true and actually works?