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6. Put a new washer on the drainbolt, then reinstall the drain bolt.
Tighten the drain bolt to:
29 lbf·ft (39 N·m , 4.0 kgf·m)
7. Refill the engine with the recommended oil.
Engine oil change capacity
(including filter):
5.0 US qt (4.7 L) 8. Reinstall the engine oil fill cap.
Start the engine. The oil pressure
indicator should go out within 5
seconds. If it does not, turn off the
engine, and check your work.
9. Let the engine run for several minutes, then check the drain bolt
and oil filter for leaks.
10. Turn off the engine and let it sit for several minutes, then check the oil
level on the dipstick. If necessary,
add more oil.
Improper disposal of engine oil can be
harmful 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.
Changing the Engine Oil and Filter
423
Maintenance
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Adding Engine CoolantIf 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 for
leaks.Always use Honda Long-life Anti-
freeze/Coolant Type 2. This coolant
is pre-mixed with 50 percent
antifreeze and 50 percent water.
Never add straight antifreeze or plain
water.
If Honda antifreeze/coolant is not
available, you may use another
major-brand non-silicate coolant as a
temporary replacement. Make sure it
is a high-quality coolant
recommended for aluminum
engines. Continued use of any non-
Honda coolant can result in
corrosion, causing the cooling
system to malfunction or fail. Have
the cooling system flushed and
refilled with Honda antifreeze/
coolant as soon as possible.If the reserve tank is completely
empty, you should also check the
coolant level in the radiator.
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.
RESERVE TANK
MAX
MINEngine Coolant42410/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu
Page 430 of 517
1. Make sure the engine and radiatorare cool.
2. Relieve any pressure in the cooling system by turning the radiator cap
counterclockwise, without
pressing down.
3. Remove the radiator cap by pushing down and turning
counterclockwise.
4. The coolant level should be up tothe base of the filler neck. Add
coolant if it is low.
Pour the coolant slowly and
carefully so you do not spill any.
Clean up any spills immediately; it
could damage components in the
engine compartment. 5. Put the radiator cap back on, and
tighten it fully.
6. Pour coolant into the reserve tank. Fill it halfway 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.
RADIATOR CAP
RESERVE TANK
MAX
MIN
Engine Coolant
425
Maintenance
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Page 432 of 517
Do not use engine antifreeze or a
vinegar/water solution in the
windshield washer reservoir. Antifreeze
can damage your vehicle's paint, while
a vinegar/water solution can damage
the windshield washer pump. Use only
commercially-available windshield
washer fluid.Automatic Transmission Fluid
The transmission should be drained
and refilled with new fluid when this
service is shown on a maintenance
message on the multi-information
display.
Check the fluid level with the engine
at normal operating temperature.
1. Park the vehicle on level ground.
Start the engine, let it run until the
radiator fan comes on, then shut
off the engine. For accurate
results, wait about 60 seconds (but
no longer than 90 seconds) before
doing step 2.
2. Remove the dipstick (yellow loop)from the transmission, and wipe it
with a clean cloth.
DIPSTICK
CONTINUED
Windshield Washers, Automatic Transmission Fluid
427
Maintenance
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3. Insert the dipstick all the way intothe transmission securely as
shown in the illustration.
4. Remove the dipstick and check the fluid level. It should be between
the upper and lower marks.
5. If the level is below the lowermark, remove the fill plug, then
add the fluid into the fill hole to
bring it to the level between the
upper and lower marks on the
dipstick.
Pour the fluid slowly and carefully
so you do not spill any. Clean up
any spills immediately; it could
damage components in the engine
compartment. Always use Acura ATF-Z1 (automatic
transmission fluid).
Use only Acura ATF-Z1 (automatic
transmission fluid). Do not mix with
other transmission fluids.
Using transmission fluid other than
Acura ATF-Z1 may cause deterioration
in transmission operation and
durability, and could result in damage
to the transmission.
Damage resulting from the use of
transmission fluid other than Acura
ATF-Z1 is not covered by the Acura
new vehicle warranty.
6. Insert the dipstick all the way back
into the transmission securely as
shown in the illustration.
If you are not sure how to add fluid,
contact your dealer.
HOT
MARK UPPER MARK
LOWER MARK
FILL PLUG
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Check the level on the side of the
reservoir when the engine is cold.
The fluid should be between the
UPPER LEVEL and LOWER LEVEL.
If not, add power steering fluid to the
UPPER LEVEL.
Pour the fluid slowly and carefully so
you do not spill any. Clean up any
spills immediately; it could damage
components in the engine
compartment.Always use Acura Power Steering
Fluid. You may use another power
steering fluid as an emergency
replacement, but have the power
steering system flushed and refilled
with Acura PSF as soon as possible.
A low power steering fluid level can
indicate a leak in the system. Check
the fluid level frequently, and have
the system inspected as soon as
possible.
If you are not sure how to add fluid,
contact your dealer.
Turning the steering wheel to full left or
right lock and holding it there can
damage the power steering pump.
UPPER LEVEL
LOWER LEVEL
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Audio AntennaYour vehicle is equipped with an
antenna at the rear of the roof. Before
using a‘‘drive-through ’’car wash,
remove the antenna by unscrewing it by
hand. This prevents the antenna from
being damaged by the car wash
brushes. Intercooler
Your vehicle is equipped with a
intercooler on the engine to cool the
air flow from a turbo charger into the
engine. The intercooler fins bend
easily. Do not push them with your
finger.
Do not spray water (from such sources
as garden hoses, high pressure
sprayers) into the engine compartment.
It may cause serious damage to your
vehicle, and could also damage the
intercooler fins.
Dust and Pollen Filter
This filter removes the dust and
pollen that is brought in from the
outside through the climate control
system.
Have your dealer replace the filter
when this service is indicated by a
maintenance message on the multi-
information 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 flow from
the climate control system becomes
less than usual.
ANTENNA
INTERCOOLER
Audio Antenna, Intercooler, Dust and Pollen Filter
439
Maintenance
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●Block the rear wheels.●If the vehicle is to be stored for a
longer period, it should be
supported on jackstands so the
tires are off the ground.●Leave one window open slightly (if
the vehicle is being stored
indoors).●Disconnect the battery.●Support the front and rear wiper
blade arms with a folded towel or
rag so they do not touch the
windshield.●To minimize sticking, apply a
silicone spray lubricant to all door
and tailgate seals. Also, apply a
vehicle body wax to the painted
surfaces that mate with the door
and tailgate seals.
●Cover the vehicle with a
‘‘breathable ’’cover, one made from
a porous material such as cotton.
Non-porous materials, such as
plastic sheeting, trap moisture,
which can damage the paint.●If possible, periodically run the
engine until it reaches full
operating temperature (the cooling
fans cycle on and off twice).
Preferably, do this once a month. Interior Care
Leather
Vacuum dirt and dust from the
leather frequently. Pay close
attention to the pleats and seams.
Clean the leather with a soft cloth
dampened with a 90% water and 10%
neutral wool detergent solution.
Then buff it with a clean, dry cloth.
Remove any dust or dirt on leather
surfaces immediately.
Vehicle Storage, Interior Care45210/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu