Honda Power Products WB20XT Guide De L'utilisateur page 14

Remove the oil filler cap/dipstick and wipe it clean.
Insert the filler cap/dipstick into the oil filler neck, but do not screw it in.
If the level is low, fill to the top of the oil filler neck with the
recommended oil.
CAUTION:
Running the engine with insufficient oil can cause serious engine
damage.
OIL FILLER NECK
UPPER LIMIT
OIL FILLER CAP
Oil Alert System
The Oil Alert System is designed to prevent engine damage caused by
an insufficient amount of oil in the crankcase. Before the oil level in
the crankcase can fall below a safe limit, the Oil Alert System will
automatically stop the engine (the engine switch will remain in the ON
position).
If the engine stops and will not restart, check the engine oil level
before troubleshooting in other areas.
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