Honda EU20i Owner's Manual page 44

1.CHANGING OIL
Drain the oil while the engine is still warm to assure rapid and complete
draining.
CAUTION:
Make sure to turn the engine switch and the fuel filler cap vent lever to
the OFF position before draining.
1.Loosen the maintenance cover screw and remove the maintenance
cover.
2.Remove the oil filler cap.
3.Drain dirty oil into a suitable container thoroughly.
4.Refill with the recommended oil (see page 16) and check the oil level.
5.Wipe off all the spilled oil from the generator.
6.Reinstall the oil filler cap.
7.Reinstall the maintenance cover and tighten the maintenance cover
screw securely.
ENGINE OIL CAPACITY: 0.4 L (0.42 US qt, 0.35 Imp qt)
MAINTENANCE
COVER SCREW
MAINTENANCE COVER
OIL FILLER CAP
OIL FILLER HOLE
Wash your hands with soap and water after handling used oil.
NOTE:
Please dispose of used motor oil in a manner that is compatible with
the environment. We suggest you take it in a sealed container to your
local service station for reclamation. Do not throw it in the trash or pour
it on the ground.
UPPER LIMIT
41