Acura RLX (2018 year). Manual — part 32

505

uu

Maintenance Under the Hood

u

Recommended Engine Oil

Main

tenan

ce

Recommended Engine Oil

Oil is a major contributor to your engine’s
performance and longevity. If you drive the
vehicle with insufficient or deteriorated oil,
the engine may fail or be damaged.

This seal indicates the oil is energy conserving
and that it meets the American Petroleum
Institute’s latest requirements.

Use a Genuine Acura Motor Oil or another
commercial engine oil of suitable viscosity for
the ambient temperature as shown here.

■

Synthetic oil

You may also use synthetic motor oil if it is labeled with the API Certification Seal
and is the specified viscosity grade.

• Genuine Acura Motor Oil
• Premium-grade 0W-20 detergent oil with an API Certification Seal on the

container.

1

Recommended Engine Oil

Engine Oil Additives
Your vehicle does not require oil additives. In fact,
they may adversely affect the engine performance
and durability.

Ambient Temperature

18 ACURA RLX E-AWD-31TY36400.book 505 ページ ２０１７年７月２０日 木曜日 午後６時８分

506

uu

Maintenance Under the Hood

u

Oil Check

Main

tenan

ce

Oil Check

We recommend that you check the engine oil level every time you refuel.
Park the vehicle on level ground.
Turn off the power system. You can check the oil level without the engine having
run beforehand. If the engine has been running, wait approximately three minutes
before you check the oil.

1. Remove the dipstick (orange).
2. Wipe the dipstick with a clean cloth or

paper towel.

3. Insert the dipstick back all the way into its

hole.

4. Remove the dipstick again, and check the

level. It should be between the upper and
lower marks. Add oil if necessary.

1

Oil Check

If the oil level is near or below the lower mark, slowly
add oil being careful not to overfill.

Upper Mark
Lower Mark

18 ACURA RLX E-AWD-31TY36400.book 506 ページ ２０１７年７月２０日 木曜日 午後６時８分

507

uu

Maintenance Under the Hood

u

Adding Engine Oil

Main

tenan

ce

Adding Engine Oil

1. Unscrew and remove the engine oil fill cap.
2. Add oil slowly.
3. Reinstall the engine oil fill cap, and tighten

it securely.

4. Wait for three minutes and recheck the

engine oil dipstick.

1

Adding Engine Oil

NOTICE

Do not fill the engine oil above the upper mark.
Overfilling the engine oil can result in leaks and
engine damage.

If any oil spills, wipe it away immediately. Spilled oil
may damage the engine compartment components.

Engine Oil Fill Cap

18 ACURA RLX E-AWD-31TY36400.book 507 ページ ２０１７年７月２０日 木曜日 午後６時８分

508

uu

Maintenance Under the Hood

u

Changing the Engine Oil and Oil Filter

Main

tenan

ce

Changing the Engine Oil and Oil Filter

You must change the engine oil and oil filter regularly in order to maintain the
engine’s lubrication. The engine may be damaged if they are not changed regularly.

Turning the power system on automatically starts the engine if the following
conditions are met:
• The SPORT mode is on.

2 SPORT Mode P. 395

Change the oil and filter in accordance with the maintenance message on the multi-
information display.

1. Run the engine until it reaches normal

operating temperature, and then turn the
engine off.

2. Open the hood and remove the engine oil

fill cap.

3. Remove the drain bolt and washer from

the bottom of the engine, and drain the
oil into a suitable container.

4. Remove the oil filter and dispose of the

remaining oil.

5. Check that the filter gasket is not stuck to

the engine contact surface.

u

If it is stuck, you must detach it.

6. Wipe away dirt and dust adhering to the

contact surface of the engine block, and
install a new oil filter.

u

Apply a light coat of new engine oil to
the filter gasket.

1

Changing the Engine Oil and Oil Filter

NOTICE

You may damage the environment if you do not
dispose of the oil in a suitable way. If you are
changing the oil by yourself, appropriately dispose of
the used oil. Put the oil in a sealed container and take
it to a recycling center. Do not throw the oil away
into a garbage can or onto the ground.

You will need a special wrench to replace the oil
filter. You can buy this wrench from a dealer.

When installing the new oil filter, follow the
instructions supplied with the oil filter.

Reinstall the engine oil fill cap. Start the engine. The
low oil pressure indicator should go off within five
seconds. If it does not, turn off the engine, and check
your work.

Drain Bolt

Washer

Oil Filter

18 ACURA RLX E-AWD-31TY36400.book 508 ページ ２０１７年７月２０日 木曜日 午後６時８分

509

uu

Maintenance Under the Hood

u

Changing the Engine Oil and Oil Filter

Main

tenan

ce

7. Put a new washer on the drain bolt, then reinstall the drain bolt.

u

Tightening torque:
30 lbf∙ft (40 N∙m, 4.0 kgf∙m)

8. Pour the recommended engine oil into the engine.

u

Engine oil change capacity (including filter):
4.5 US qt (4.3 L)

9. Reinstall the engine oil fill cap securely and start the engine.

10. Run the engine for a few minutes, and then check that there is no leak from the

drain bolt or oil filter.

11. Stop the engine, wait for three minutes, and then check the oil level on the

dipstick.

u

If necessary, add more engine oil.

18 ACURA RLX E-AWD-31TY36400.book 509 ページ ２０１７年７月２０日 木曜日 午後６時８分

510

uu

Maintenance Under the Hood

u

Cooling System

Main

tenan

ce

Cooling System

This coolant is premixed with 50% antifreeze and 50% water. Do not add any
straight antifreeze or water.

We recommend you check the engine coolant level every time you refuel. Check the
reserve tank first. If it is completely empty, also check the coolant level in the
radiator. Add the engine coolant accordingly.

1. Make sure the engine and radiator are

cool.

2. Check the amount of coolant in the reserve

tank.

u

If the coolant level is below the MIN
mark, add the specified coolant until it
reaches the MAX mark.

3. Inspect the cooling system for leaks.

Specified coolant: Acura Long Life Antifreeze/Coolant Type 2

■

Reserve Tank

1

Cooling System

NOTICE

Genuine Acura engine coolant is a 50/50 mixture of
antifreeze and water that can withstand freezing at
temperatures as low as about -31°F (-35°C). If your
vehicle is consistently subjected to temperatures
below this, the concentration of antifreeze in the
coolant should be increased. Consult a dealer for
details.

If Acura antifreeze/coolant is not available, you may
use another major brand of non-silicate coolant as a
temporary replacement. Check that it is a high quality
coolant recommended for aluminum engines.
Continued use of any non-Acura coolant can result in
corrosion, causing the cooling system to malfunction
or fail. Have the cooling system flushed and refilled
with Acura antifreeze/coolant as soon as possible.

Do not add rust inhibitors or other additives to your
vehicle’s cooling system. They may not be compatible
with the coolant or with the engine components.

3

WARNING

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

MIN

18 ACURA RLX E-AWD-31TY36400.book 510 ページ ２０１７年７月２０日 木曜日 午後６時８分

511

uu

Maintenance Under the Hood

u

Cooling System

Main

tenan

ce

1. Make sure the engine and radiator are

cool.

2. Remove the engine compartment cover.

2 Engine Compartment Cover P. 504

3. Turn the radiator cap 1/8 turn counter-

clockwise to relieve any pressure in the
cooling system.

4. Push down and turn the radiator cap

counter-clockwise to remove it.

5. The coolant level should be up to the base

of the filler neck. Add coolant if it is low.

6. Put the radiator cap back on, and tighten it

fully.

■

Radiator

1

Radiator

NOTICE

Pour the fluid slowly and carefully so you do not spill
any. Clean up any spills immediately; they can
damage components in the engine compartment.

Radiator Cap

18 ACURA RLX E-AWD-31TY36400.book 511 ページ ２０１７年７月２０日 木曜日 午後６時８分

512

uu

Maintenance Under the Hood

u

Inverter Coolant

Main

tenan

ce

Inverter Coolant

This coolant is premixed with 50% antifreeze and 50% water. Do not add any
straight antifreeze or water.

We recommend you check the inverter coolant level every time you refuel.

Have a dealer replace the inverter coolant.

1. Check the fluid level in the tank.
2. If the coolant level has dropped below the

MIN level, have your vehicle serviced at a
dealer.

u

Only a properly trained technician can
refill the coolant and check the system
for leaks.

Specified coolant: Acura Long Life Antifreeze/Coolant Type 2

■

Checking the Coolant

1

Inverter Coolant

NOTICE

Genuine Acura engine coolant is a 50/50 mixture of
antifreeze and water that can withstand freezing at
temperatures as low as about -31°F (-35°C). If your
vehicle is consistently subjected to temperatures
below this, the concentration of antifreeze in the
coolant should be increased. Consult a dealer for
details.

If Acura antifreeze/coolant is not available, you may
use another major brand of non-silicate coolant as a
temporary replacement. Check that it is a high quality
coolant recommended for aluminum engines.
Continued use of any non-Acura coolant can result in
corrosion, causing the cooling system to malfunction
or fail. Have the cooling system flushed and refilled
with Acura antifreeze/coolant as soon as possible.

Do not add rust inhibitors or other additives to your
vehicle’s cooling system. They may not be compatible
with the coolant or with the motor components.

MAX

MIN

Filler
Tank

18 ACURA RLX E-AWD-31TY36400.book 512 ページ ２０１７年７月２０日 木曜日 午後６時８分

513

uu

Maintenance Under the Hood

u

Transmission Fluid

Main

tenan

ce

Transmission Fluid

Have a dealer check the fluid level and replace if necessary.

Do not attempt to check or change the automatic transmission fluid yourself.

Brake Fluid

The fluid level should be between the MIN
and MAX marks on the side of the reserve
tank.

■

Dual Clutch Transmission Fluid

Specified fluid: Acura Automatic Transmission Fluid ATF DW-1

Specified fluid: Acura Heavy Duty Brake Fluid DOT 3

■

Checking the Brake Fluid

1

Dual Clutch Transmission Fluid

NOTICE

Acura ATF DW-1 must not be mixed with other
transmission fluids.
Using a transmission fluid other than Acura ATF
DW-1 may adversely affect the operation and
durability of your vehicle’s transmission, and damage
the transmission.
Any damage caused by using a transmission fluid that
is not equivalent to Acura ATF DW-1 is not covered
by Acura’s new vehicle limited warranty.

1

Brake Fluid

NOTICE

Brake fluid marked DOT 5 is not compatible with your
vehicle’s braking system and can cause extensive
damage.

If the specified brake fluid is not available, you should
use only DOT 3 or DOT 4 fluid from a sealed
container as a temporary replacement.

Using any non-Acura brake fluid can cause corrosion
and decrease the longevity of the system. Have the
brake system flushed and refilled with Acura Heavy
Duty Brake Fluid DOT 3 as soon as possible.

If the brake fluid level is at or below the MIN mark,
have a dealer inspect the vehicle for leaks or worn
brake pads as soon as possible.

MIN

Reserve Tank

MAX

18 ACURA RLX E-AWD-31TY36400.book 513 ページ ２０１７年７月２０日 木曜日 午後６時８分

514

uu

Maintenance Under the Hood

u

Refilling Window Washer Fluid

Main

tenan

ce

Refilling Window Washer Fluid

If the washer fluid is low, a message appears on the multi-information display.
Pour the washer fluid carefully. Do not overflow the reservoir.

1

Refilling Window Washer Fluid

NOTICE

Do not use engine antifreeze or a vinegar/water
solution in the windshield washer reservoir.
Antifreeze can damage your vehicle’s paint. A
vinegar/water solution can damage the windshield
washer pump.
Use only commercially available windshield washer
fluid.
Avoid prolonged use of hard water to prevent lime
scale build up.

18 ACURA RLX E-AWD-31TY36400.book 514 ページ ２０１７年７月２０日 木曜日 午後６時８分

515

Main

tenan

ce

Replacing Light Bulbs

Headlights

Headlights are LED type. Have an authorized Acura dealer inspect and replace the
light assembly.

Parking/Daytime Running Lights

Parking/daytime running lights are LED type. Have an authorized Acura dealer
inspect and replace the light assembly.

Fog Lights

*

Fog lights are LED type. Have an authorized Acura dealer inspect and replace the
light assembly.

Front Turn Signal Lights

Front turn signal lights are LED type. Have an authorized Acura dealer inspect and
replace the light assembly.

1

Headlights

The headlight aim is set by the factory, and does not
need to be adjusted. However, if you regularly carry
heavy items in the trunk, have the aiming readjusted
at a dealer or by a qualified technician.

* Not available on all models

18 ACURA RLX E-AWD-31TY36400.book 515 ページ ２０１７年７月２０日 木曜日 午後６時８分

516

uu

Replacing Light Bulbs

u

Front Side Marker Lights

Main

tenan

ce

Front Side Marker Lights

Front side marker lights are LED type. Have an authorized Acura dealer inspect and
replace the light assembly.

Side Turn Signal/Emergency Indicator Lights

Door mirror side turn lights are LED type. Have an authorized Acura dealer inspect
and replace the light assembly.

Rear Turn Signal Lights

Rear turn signal lights are LED type. Have an authorized Acura dealer inspect and
replace the light assembly.

Brake/Taillight and Rear Side Marker Lights

Brake/taillight and rear side marker lights are LED type. Have an authorized Acura
dealer inspect and replace the light assembly.

Taillights

Taillights are LED type. Have an authorized Acura dealer inspect and replace the light
assembly.

18 ACURA RLX E-AWD-31TY36400.book 516 ページ ２０１７年７月２０日 木曜日 午後６時８分

517

uu

Replacing Light Bulbs

u

Back-Up Lights

Main

tenan

ce

Back-Up Lights

Back-up lights are LED type. Have an authorized Acura dealer inspect and replace
the light assembly.

Rear License Plate Lights

Rear license plate lights are LED type. Have an authorized Acura dealer inspect and
replace the light assembly.

High-Mount Brake Light

High-mount brake light is LED type. Have an authorized Acura dealer inspect and
replace the light assembly.

Door Outer Handle Ambient Lights

Door outer handle ambient lights are LED type. Have an authorized Acura dealer
inspect and replace the light assembly.

18 ACURA RLX E-AWD-31TY36400.book 517 ページ ２０１７年７月２０日 木曜日 午後６時８分

518

Main

tenan

ce

Checking and Maintaining Wiper Blades

Checking Wiper Blades

If the wiper blade rubber has deteriorated, it will leave streaks and the hard surfaces
of the blade may scratch the window glass.

Changing the Wiper Blade Rubber

1. Set the power mode to VEHICLE OFF.
2. While holding the wiper switch in the

MIST position, set the power mode to ON,
then to VEHICLE OFF.

u

Both wiper arms are set to the
maintenance position as shown in the
image.

3. Lift both wiper arms.

1

Changing the Wiper Blade Rubber

NOTICE

Avoid dropping the wiper arm onto the windshield, it
may damage the wiper arm and/or the windshield.

18 ACURA RLX E-AWD-31TY36400.book 518 ページ ２０１７年７月２０日 木曜日 午後６時８分

519

uu

Checking and Maintaining Wiper Blades

u

Changing the Wiper Blade Rubber

Continued

Main

tenan

ce

4. Press and hold the tab, then slide the

holder off the wiper arm.

5. Pull the end of the wiper blade in the

direction of the arrow in the image until it
is out of the holder’s end cap.

6. Pull the wiper blade in the opposite

direction to slide it out of the holder.

Tab

Wiper
Blade

End Cap at
the bottom

Holder

18 ACURA RLX E-AWD-31TY36400.book 519 ページ ２０１７年７月２０日 木曜日 午後６時８分

520

uu

Checking and Maintaining Wiper Blades

u

Changing the Wiper Blade Rubber

Main

tenan

ce

7. Insert the flat side of the new wiper blade

onto the bottom part of the holder. Insert
the blade all the way.

8. Install the end of the wiper blade into the

cap.

9. Slide the holder onto the wiper arm until it

locks.

10. Lower both wiper arms.
11. Set the power mode to ON and hold the

wiper switch in the MIST position until
both wiper arms return to the standard
position.

Cap

Wiper
Blade

Holder

18 ACURA RLX E-AWD-31TY36400.book 520 ページ ２０１７年７月２０日 木曜日 午後６時８分