Ferrari 2012 F12 Berlinetta Owner's Manual page 36

Instructions for vehicle refuelling
Warning
Only fill the vehicle with unleaded petrol.
Using unleaded petrol is fundamentally important to ensure
that the catalytic converters of the vehicle's exhaust system work
properly.
Warning
Never put leaded petrol in the fuel tank, not even in
emergencies: fuel deposits could irreparably damage the
catalytic converters.
For optimal engine performance and efficiency, Ferrari strongly
recommends using unleaded petrol with an octane rating (R.O.N.)
of 98.
As unleaded petrol with a 98 R.O.N. is not always available, the
engine is any case suitable for using unleaded petrol with an
octane rating not below 95 R.O.N. In this case, the engine control
system will appropriately adjust calibrations, allowing the vehicle to
function correctly, although performance is decreased.
General
36
Warning
The use of unleaded petrol with a R.O.N. below 95 can cause
malfunctioning and is not recommended.
Important note
This vehicle is suitable for use with unleaded fuel with a
maximum of 10% ethanol (E10)
Warning
The use of fuels with 10% to 25% ethanol can lead to
malfunctioning.
The use of fuels with over 25% ethanol can cause permanent
damage to the engine fuel system.
See page 83 for further information.