Page 235 of 324
Oil is a major contributor to your
engine’s perf ormance and longevity.
Always use a premium-grade
detergent oil displaying the API
Certif ication Seal. This seal indicates
the oil is energy conserving, and that
it meets the American Petroleum
Institute’s latest requirements. It is
highly recommended that you use
Honda Motor Oil in your vehicle f or
optimum engine protection.
Reinstall the engine oil f ill cap, and
tighten it securely. Wait a f ew
minutes, and recheck the oil level on
the engine oil dipstick. Do not f ill
above the upper mark; you could
damage the engine.
Unscrew and remove the engine oil
fill cap on the valve cover. Pour in
the oil slowly and caref ully so you do
not spill any. Clean up any spills
immediately. Spilled oil could
damage components in the engine
compartment. Recommended Engine Oil
A dding Engine Oil
232
API CERTIFICATION SEAL
ENGINE OIL FILL CAP ENGINE OIL FILL CAP
Except Si Si
——y
y
(#yy
2008 Civic Sedan
Page 236 of 324

µYou may use a synthetic motor oil if
it meets the same requirements
given f or a conventional motor oil: it
displays the API certif ication seal,
and it is the proper weight. You must
f ollow the oil and f ilter change
intervals shown on the information
display.
Your vehicle does not require any oil
additives. Additives may adversely
af f ect the engine or transmission
perf ormance and durability.
An oil with a viscosity of 5W-30 is
pref erred f or improved f uel economy
and year-round protection in your
vehicle. You may use a 10W-30 oil if
the temperature in your area never
goes below 20°F ( 7°C).
Make sure the API Certif ication Seal
says ‘‘For Gasoline Engines.’’
The oil viscosity or weight is
provided on the container’s label.
Honda Motor Oil is the pref erred
5W-20 lubricant f or your vehicle.
5W-20 oil is f ormulated f or year-
round protection of your vehicle, to
improve cold weather starting and
f uel economy.
Synthetic Oil
Engine Oil A dditives
A ll models except Si: Si model:
A dding Engine Oil
Maint enance
233
Ambient Temperature Ambient Temperature
——y
y
(#yy
2008 Civic Sedan
Page 237 of 324
Open the hood, and remove the
engine oil f ill cap. Remove the oil
drain bolt and washer f rom the
bottom of the engine. Drain the oil
into an appropriate container.
Always change the oil and f ilter
according to the maintenance
messages shown on the inf ormation
display. The oil and f ilter collect
contaminants that can damage your
engine if they are not removed
regularly.
Changing the oil and f ilter requires
special tools and access f rom
underneath the vehicle. The vehicle
should be raised on a service station-
type hydraulic lif t f or this service.
Unless you have the knowledge and
proper equipment, you should have
this maintenance done by a skilled
mechanic.
Run the engine until it reaches
normal operating temperature,
then shut it off.
1. 2.
Changing the Engine Oil and Filter
234
WASHER
DRAIN BOLT
WASHER DRAIN BOLT
Except Si Si
——y
y
(#yy
2008 Civic Sedan
Page 244 of 324

If Honda MTF is not available, you
may use an SAE 10W-30 or 10W-40
viscosity motor oil with the API
Certif ication seal that says ‘‘FOR
GASOLINE ENGINES’’ as a
temporary replacement. However,
motor oil does not contain the proper
additives, and continued use can
cause stif f er shif ting. Replace as
soon as it is convenient.
Check the f luid level with the
transmission at normal operating
temperature and the vehicle sitting
on level ground. Remove the
transmission f iller bolt, and caref ully
f eel inside the bolt hole with your
f inger. The f luid level should be up
to the edge of the bolt hole. If it is
not, add Honda Manual
Transmission Fluid (MTF) until it
starts to run out of the hole. Reinstall
the f iller bolt, and tighten it securely.
If you are not sure how to add f luid,
contact your dealer. Insert the dipstick all the way back
into the transmission securely as
shown in the illustration.
The automatic transmission should
be drained and ref illed with new f luid
when this service is indicated by a
maintenance message on the
inf ormation display. 6.
CONT INUED
Manual Transmission Fluid
T ransmission Fluid
Maint enance
241
FILLER BOLT
Correct LevelFILLER BOLT
Correct Level
Except Si SiUse only Honda Genuine ATF-Z1
(Automatic Transmission Fluid). Do
not mix with other transmission f luids.
Using transmission f luid other than
Honda Genuine ATF-Z1 may cause
deterioration in transmission operation
and durability, and could result in
damage to the transmission.
Damage resulting f rom the use of
transmission f luid other than Honda
Genuine ATF-Z1 is not covered by the
Honda new vehicle warranty.
——y
y
(#yy
2008 Civic Sedan
Page 245 of 324

The f luid level should be between
theMINandMAXmarksontheside
of the reservoir. If the level is at or
below the MIN mark, your brake
system needs attention. Have the
brake system inspected f or leaks or
worn brake pads.
The manual transmission should be
drained and ref illed with new f luid
when this service is indicated by a
maintenance message on the
inf ormation display.
If you are not sure how to check and
add f luid, contact your dealer.
Brake f luid marked DOT 5 is not
compatible with your vehicle’s
braking system and can cause
extensive damage. Using any non-Honda brake f luid can
cause corrosion and decrease the lif e
of the system. Have the brake
system f lushed and ref illed with
Honda Heavy Duty Brake Fluid
DOT 3 as soon as possible. Always use Honda Heavy Duty
Brake Fluid DOT 3. If it is not
available, you should use only DOT 3
or DOT 4 f luid, f rom a sealed
container, as a temporary
replacement. Replace the brake f luid according to
thetimerecommendationsinthe
maintenance minder schedule. Check the brake f luid level in the
reservoirs monthly.Brake System
Brake and Clutch Fluid
Transmission Fluid, Brake and Clutch Fluid
242
MAX
MIN
——y
y
(#yy
2008 Civic Sedan
Page 253 of 324

Dirt build-up in the loops of the seat
belt anchors can cause the belts to
retract slowly. Wipe the insides of
the loops with a clean cloth
dampened in mild soap and warm
water or isopropyl alcohol.This f ilter removes the dust and
pollenthatisbroughtinfromthe
outside through the heating and
cooling system.
If your seat belts get dirty, use a sof t
brush with a mixture of mild soap
and warm water to clean them. Do
not use bleach, dye, or cleaning
solvents. Let the belts air dry bef ore
you use the vehicle. The floor mats that came with your
vehicle hook over the f loor mat
anchors. This keeps them f rom
sliding f orward and possibly
interf ering with vehicle operation.
If you remove the driver’s f loor mat,
make sure to re-anchor it when you
putitbackinyourvehicle.If you use non-Honda f loor mats,
make sure they f it properly and that
theycanbeusedwiththefloormat
anchors. Do not put additional f loor
mats on top of the anchored mats.
Have your dealer replace the filter
when this service is indicated by a
maintenance message on the
inf ormation display. It should be
replaced every 15,000 miles (24,000
km) if you drive primarily in urban
areas that have high concentrations
of soot in the air, or if the f low f rom
the heating and cooling system
becomeslessthanusual.
If equipped
On models with A/C
Floor Mats
Dust and Pollen Filter
Cleaning the Seat Belts
Cleaning the Seat Belts, Floor Mats, Dust and Pollen Filter
250
LOOP
——y
y
(#yy
2008 Civic Sedan
Page 261 of 324

In addition to proper inf lation,
correct wheel alignment helps to
decrease tire wear. If you f ind a tire
is worn unevenly, have your dealer
check the wheel alignment.
Have your dealer check the tires if
you f eel a consistent vibration while
driving. A tire should always be
rebalanced if it is removed f rom the
wheel. When you have new tires
installed, make sure they are
balanced. This increases riding
comf ort and tire lif e. For best results,
have the installer perform a dynamic
balance.To help increase tire lif e and
distribute wear more evenly, rotate
the tires according to the
maintenance messages displayed on
the information display. Move the
tires to the positions shown in the
chart each time they are rotated. If
you purchase directional tires, rotate
only f ront-to-back.
When the tires are rotated, make
sure the air pressures are checked.The tires that came on your vehicle
were designed and constructed to
provide superior grip during
acceleration, braking, and cornering.
As a trade-of f , they will wear more
rapidly than tires used on ordinary
passenger vehicles. Because of the
vehicle’s weight distribution, and the
fact that the front wheels are the
driving wheels, you can expect them
to wear more rapidly than the rear
tires.On Si model only
T ire Maintenance T ire Rotation T ire Wear
Tires
258
Front Front
(For Non-directional
Tires and Wheels) (For Directional
Tires and Wheels)
On vehicles with aluminum wheels,
improper wheel weights can damage
your vehicle’s aluminum wheels. Use
only Honda wheel weights f or
balancing.
—
—y
y
(#yy
2008 Civic Sedan
Page 266 of 324

µ
If your vehicle’s battery is
disconnected, or goes dead, the
audio system will disable itself . The
nexttimeyouturnontheradio,you
may see ‘‘CODE’’ in the f requency
display. Use the preset buttons to
enter the code (see page ).
The navigation system will also
disableitself.Thenexttimeyouturn
on the ignition switch, the system
will require you to enter a PIN
bef ore it can be used. Ref er to the
navigation system manual.
If you need to connect the battery to
a charger, disconnect both cables to
prevent damaging your vehicle’s
electrical system. Always disconnect
the negative ( ) cable first, and
reconnect it last.
If additional battery maintenance is
needed, see your dealer or a
qualif ied technician.
Battery posts,
terminals, and related accessories
contain lead and lead compounds.173
On vehicles with navigation system
WARNING:
Wash your hands af ter handling.
Checking the Battery
Maint enance
263
The battery gives off explosive
hydrogen gas during normal
operation.
A spark or flame can cause the
battery to explode with enough
force to kill or seriously hurt you.
Wear protective clothing and a
face shield, or have a skilled
technician do the battery
maintenance.
—
—y
y
(#yy
2008 Civic Sedan