Just have a question for current owners regarding petrol and octane levels. My understanding is that the 12C requires octane levels of 91-93 for best performance. In North America most premium fuels are 91 octane and some of the ones I know have 94 but that is because 10% of it is ethanol to boost the octane level. Is 10% ethanol allowed to be used in the 12C or not? I know in some brand vehicles any amount ethanol is not recommended because they use plastic injectors which can get ruined by ethanol.