Ducati MONSTER 821, Owner'S Manual, Page: 263 / 295

Check engine oil level
Engine oil level can be checked through the sight
glass (1) located onto clutch cover.
Oil level should be between the marks on the sight
glass. If the level is low, top up with engine oil.
Ducati recommends you use Shell Advance 4T Ultra
15W-50 oil (JASO: MA2 and API: SN).
Remove the oil filler cap (2) and top up until the oil
reaches the required level. Refit the filler plug (2).
Important
Engine oil and oil filters must be changed by a
Ducati Dealer or authorised Service Centre at the
intervals specified in the scheduled maintenance
chart reported in the Warranty Card.
To check the oil level correctly, carefully follow the
instructions below.
1) The level must be checked with warm engine, so if
it is not performed after riding for at least 20/30
minutes you will need to warm up the engine.
If, on the other hand, the engine is cold, start it and let
it warm up until the cooler fans start two consecutive
times (the engine oil must be perfectly warm to flow
along the lines and reach the engine sump).
During this warming up phase, the bike can be left on
the side stand.
2) Turn off the engine and wait 10\15 minutes to allow
the oil to flow completely inside the sump.
3) Position the bike with both wheels on a flat ground
and in straight position.
4) Then, check the engine oil through the sight glass.
5) If the oil level is below the middle line between the
MIN and MAX marks, add oil until reaching the
maximum level indication.
1
2
MAX
MIN
Fig. 210
262