Honda Power Products EU1oi Manuel De L'utilisateur page 20

(1) Loosen the maintenance cover screw and remove the maintenance
cover (see page 40).
(2) Remove the oil filler cap.
(3) Check the oil level. If it is below the upper limit, fill with the
recommended oil to the upper limit.
(4) Reinstall the oil filler cap securely.
CAUTION:
Running the engine with insufficient oil can cause serious engine
damage.
NOTE:
The Oil Alert system will automatically stop the engine before the oil
level falls below the safe limit. However, to avoid the inconvenience of
an unexpected shutdown, it is still advisable to visually inspect the oil
level regularly.
OIL FILLER CAP
UPPER LIMIT
17