Ducati 999 2003 Manuel D'utilisation Et Entretien page 153

Refueling (fig. 45)
Never overfill the tank when refueling. Fuel should never
be touching the rim of filler recess.
Warning
Use fuel with low lead content and an original
octane number of 95 minimum (see table "Top-ups" on
page 86).
Make sure there is no fuel trapped in the filler plug
recess.
E
54
All manuals and user guides at all-guides.com
Max level
fig. 45