Join Date: Aug 2011
Location: Albuquerque, NM
Ferrari Life Posts: 11,881
575s in Europe need a recommended RON of 95-98 according to the owners manual. In the US that is the equivalent of 91-93 using research octane number plus motor octane number divided by 2. There will be virtually no hp gain from using 98 vs 95 in Europe (or 93 vs 91 in the US) and anything higher is a waste of money without remapping the Motronic DMEs.
Present: 575M 135171
Past: Dino 246 GT 02984, 365 GTB/4 14009, 308 GTS 25125
Every day I look around, and if nobody is shooting at me, it is a pretty good day.