2008 Acura RL Owner's Manual

The component parts in the engine
compartment are protected by
several covers. You may need to
remove the covers when you
perf orm some simple maintenance
work.
All of the covers are secured by
holding clips.
To remove the f ront bulkhead cover,
remove the holding clips with a f lat-
tip screwdriver.
To remove the lef t or right engine
compartment cover, remove the
holding clips by loosening the pins in
the center of the f astener.
To remove the battery cover, turn
the knob of the f astener (see page).
428
Engine Compartment Covers
398
FRONT BULKHEAD COVER
RIGHT COMPARTMENT COVER LEFT COMPARTMENT COVER
BATTERY COVER
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2008 RL

Install the engine oil f ill cap, and
tighten it securely. Wait a f ew
minutes, and recheck the oil level.
Do not f ill above the upper mark; you
could damage the engine.
Unscrew and remove the engine oil
fill cap on top of 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.Oil is a major contributor to your
engine’s perf ormance and longevity.
Always use a premium-grade 5W-20
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.
Honda Motor Oil is the pref erred
5W-20 lubricant f or your vehicle. It is
highly recommended that you use
Honda Motor Oil in your vehicle f or
optimum engine protection. Make
sure the API Certif ication Seal says
‘‘For Gasoline Engines.’’
The oil viscosity or weight is
provided on the container’s label.
5W-20 oil is f ormulated f or year-
round protection of your vehicle to
improve cold weather starting and
f uel economy.
CONT INUED
Recommended Engine Oil
A dding Engine Oil
Maint enance
399
API CERTIFICATION SEAL
ENGINE OIL FILL CAP
Ambient Temperature
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2008 RL

Your vehicle does not require any oil
additives. Additives may adversely
af f ect the engine or transmission
perf ormance and durability.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.
Run the engine until it reaches
normal operating temperature,
then shut it off.
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.
Always change the oil and f ilter
according to the maintenance
messages shown on the multi-
inf ormation display. The oil and f ilter
collect contaminants that can
damage your engine if they are not
removed regularly.
You 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 maintenance
minder display.
1.2.
Synthetic Oil
Engine Oil A dditives
Changing the Engine Oil and
Filter
A dding Engine Oil, Changing the Engine Oil and Filter
400
WASHER
OIL DRAIN BOLT
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Remove the oil f ilter, and let the
remaining oil drain. A special
wrench (available from your
dealer) is required.Refill the engine with the
recommended oil.
Engine oil change capacity
(including f ilter):
Replace the engine oil f ill cap.
Start the engine. The oil pressure
indicator should go out within 5
seconds. If it does not, turn of f the
engine, and check your work.
Let the engine run f or several
minutes, then check the drain bolt
and oil f ilter f or leaks.
Turn of f the engine and let it sit
f or several minutes, then check
the oil level on the dipstick. If
necessary, add more oil.
Put a new washer on the drain bolt,
then reinstall the drain bolt.
Tighten the drain bolt to:
Install a new oil f ilter according to
the instructions that come with it.
Make sure the oil f ilter gasket is
not stuck to the engine block. If it
is, remove it bef ore installing a
new oil f ilter.
3. 6.
7.
8.
9.
5.
4.
Changing the Engine Oil and Filter
Maint enance
401
OIL FILTER
29 lbf·ft (39 N·m , 4.0 kgf·m)
4.5 US qt (4.3
) Improper disposal of engine oil can be
harmf ul to the environment. If you
change your own oil, please dispose of
the used oil properly. Put it in a sealed
container, and take it to a recycling
center. Do not discard it in a trash bin
or dump it on the ground.
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If the coolant level in the reserve
tank is at or below the MIN line, add
coolant to bring it up to the MAX line.
Inspect the cooling system f or leaks.If the reserve tank is completely
empty, you should also check the
coolant level in the radiator.
If Honda antif reeze/coolant is not
available, you may use another
major-brand non-silicate coolant as a
temporaryreplacement.Makesureit
is a high-quality coolant
recommended f or aluminum engines.
Continued use of any non-Honda
coolant can result in corrosion,
causing the cooling system to
malf unction or f ail. Have the cooling
system f lushed and ref illed with
Honda antif reeze/coolant as soon as
possible.
Always use Honda Long-lif e Anti-
f reeze/Coolant Type 2. This coolant
is pre-mixed with 50 percent
antif reeze and 50 percent water.
Never add straight antifreeze or
plain water.
A dding Engine Coolant
Engine Coolant
402
RESERVE TANK
Removing the radiator cap
while the engine is hot can
cause the coolant to spray out,
seriously scalding you.
Always let the engine and
radiator cool down before
removing the radiator cap.
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The coolant level should be up to
the base of the f iller neck. Add
coolant if it is low.
When the radiator and engine are
cool, relieve any pressure in the
cooling system by turning the
radiator cap counterclockwise,
without pressing down.
Remove the radiator cap by
pushing down and turning
counterclockwise. Put the radiator cap back on, and
tighten it fully.
Pour coolant into the reserve tank.
Fill it to half way between the MAX
and MIN marks. Put the cap back
on the reserve tank.
Do not add any rust inhibitors or
other additives to your vehicle’s
cooling system. They may not be
compatible with the coolant or
engine components.
Pourthecoolantslowlyandcarefully
so you do not spill any. Clean up any
spill immediately; it could damage
components in the engine
compartment.
3.
1.
2. 4.
5.
Engine Coolant
Maint enance
403
RADIATOR CAP
RESERVE TANK
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Check the f luid level in the
windshield washer reservoir at least
monthly during normal use.Check the f luid level with the engine
at normal operating temperature.
Fill the reservoir with a good-quality
windshield washer f luid. This
increases the cleaning capability and
prevents f reezing in cold weather.
When you ref ill the reservoir, clean
the edges of the windshield wiper
blades with windshield washer f luid
on a clean cloth. This will help to
condition them.
If the washer f luid is low, a
‘‘WASHER FLUID LOW’’ message
appears on the multi-inf ormation
display. Park the vehicle on level ground.
Start the engine, let it run until the
radiator f an comes on, then shut
of f the engine. For accurate
results, wait about 60 seconds (but
no longer than 90 seconds) bef ore
doing step 2.
Remove the dipstick (yellow loop)
f rom the transmission, and wipe it
with a clean cloth.
1.
2.
Windshield Washers Automatic Transmission Fluid
Windshield Washers, A utomatic T ransmission Fluid
404
NOTICE:
DIPSTICK
Do not use engine antif reeze
or a vinegar/water solution in the
windshield washer reservoir. Antif reeze
can damage your vehicle’s paint, while
a vinegar/water solution can damage
the windshield washer pump. Use only
commercially-available windshield
washer f luid.
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Insert the dipstick all the way back
into the transmission securely as
shown in the illustration.
If youarenotsurehowtoaddfluid,
contact your dealer.
Insert the dipstick all the way into
the transmission as shown.
Remove the dipstick and check
the f luid level. It should be
between the upper and lower
marks.
If the level is below the lower
mark, add f luid into the dipstick
hole to bring it to the level
between the upper and lower
marks. Pour the f luid slowly and caref ully
so you do not spill any. Clean up
any spill immediately; it could
damage components in the engine
compartment.
Always use Honda ATF-Z1
(automatic transmission f luid).
The transmission should be drained
andrefilledwithnewfluidwhenthis
service is shown by a maintenance
message on the multi-inf ormation
display.
5. 6.
3.
4.
Automatic Transmission Fluid
Maint enance
405
LOWER MARK
UPPER MARK
Use 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.
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