Honda 2003 Civic Hybrid Owner's Manual page 207

Transmission Fluid
5-speed Manual Transmission
FILLER BOLT
Correct Level
Check the fluid level with the
transmission at normal operating
temperature and the car sitting on
level ground. Remove the under
cover to access the transmission
housing (see page 197 ). Remove the
transmission filler bolt and carefully
feel inside the bolt hole with your
finger. The fluid level should be up
to the edge of the bolt hole. If it is
not, add Honda Manual Transmis-
sion Fluid (MTF) until it starts to
208
Maintenance
run out of the hole. Reinstall the
filler bolt and tighten it securely.
If Honda MTF is not available, you
may use an SAE 10W-30 or 10W-40
viscosity motor oil with the API
Certification seal that says ''For
Gasoline Engines'' as a temporary
replacement. However, motor oil
does not contain the proper additives
and continued use can cause stiffer
shifting. Replace as soon as it is
convenient.
The transmission should be drained
and refilled with new fluid according
to the time and distance recommen-
dations in the maintenance schedule.