Stabil Fuel Preservative
The links below are capable of stabilizing a 25 gallon tank of fuel. 10oz should be sufficient for the the Ferrari Models discussed. For reference, below are the models featured on this site and their fuel capacity:
V8s
360 Modena: 25.1 gallons
F430: 25.1 gallons
458 Italia: 22.7 gallons
V12s
599 GTB: 27.7 gallons
F12 Berlinetta: 24.3 gallons
FF: 24 gallons
360 Modena: 25.1 gallons
F430: 25.1 gallons
458 Italia: 22.7 gallons
V12s
599 GTB: 27.7 gallons
F12 Berlinetta: 24.3 gallons
FF: 24 gallons