2002 Ducati Monster 900 i.e. Owners Manual - Page 126

E Checking engine oil level (fig. 40) Engine oil level can be checked through the sight glass (1) provided on the clutch cover. When checking oil level, the motorcycle should be upright and the engine warm. Allow a few minutes for oil to settle to a steady level after stopping the engine. Oil level should be between the marks near the sight glass. Top up oil level with SHELL Advance Ultra 4, if low. Undo the filler plug (2) and top up to correct level. Refit the plug. Important Engine oil and oil filters must be changed by a Ducati Dealer or Authorized Workshop at regular intervals, as specified in the routine maintenance chart (see Warranty Card). Viscosity SAE 10W-40 The other viscosity degrees indicated in the table can be used if the local average temperature is within the limits specified for that oil viscosity. 620/750 900 fig. 40 10W Multigrade Unigrade 20W 20 30 40 20W-40 15W-40 10W-40 10W-30 -10 0 10 20 30 40°C 20W-50 15W-50 54