2018 Acura RDX fuel type

346
Maintenance
Before Performing Maintenance
Inspection and Maintenance
For your safety, perform all listed inspections and maintenance to keep your vehicle
in good condition. If you become aware of any abnormality (noise, smell, insufficient
brake fluid, oil residue on the ground, etc.), have your vehicle inspected by a dealer.
(Note, however, that service at a dealer is not mandatory to keep your warranties in
effect.) Refer to the separate maintena nce booklet for detailed maintenance and
inspection information.
■Daily inspections
Perform inspections before long distance trips, when washing the vehicle, or when
refueling.
■Periodic inspections
• Check the automatic transmission fluid level monthly.
2 Automatic Transmission Fluid P. 362
•Check the brake fluid level monthly.
2 Checking the Brake Fluid P. 363
•Check the tire pressure monthly. Examin e the tread for wear and foreign objects.
2Checking and Maintaining Tires P. 376
•Check the operation of the exterior lights monthly.
2Replacing Light Bulbs P. 365
•Check the condition of the wiper bl ades at least every six months.
2Checking and Maintaining Wiper Blades P. 372
■Types of Inspection and Maintenance
1Inspection and Maintenance
Maintenance, replacement, or repair of
emissions control devices and systems may be
done by any automotive repair establishment or
individuals using parts that are “certified” to
EPA standards.
According to state and fede ral regulations, failure to
perform maintenance on the maintenance main
items marked with # will not void your emissions
warranties. However, all maintenance services should
be performed in accordan ce with the intervals
indicated by the mult i-information display.
2 Maintenance Service Items P. 351
If you want to perform complex maintenance tasks
that require more skills a nd tools, you can purchase a
subscription to the Service Express website at
www.techinfo.honda.com .
2 Authorized Manuals P. 441
If you want to perform ma intenance yourself, make
sure that you have the necessary tools and skills first.
After performing ma intenance, update the records in
the separate maintenance booklet.
U.S. models

360
uuMaintenance Under the Hood uEngine Coolant
Maintenance
Engine Coolant
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.Check the amount of coolant in the reserve
tank.
2. 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
1Engine Coolant
NOTICE
Genuine Acura engine cool ant is a 50/50 mixture of
antifreeze and water that can withstand freezing at
temperatures as low as a bout -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 non- silicate coolant as a
temporary replacement. Check that it is a high quality
coolant recommended for aluminum engines.
Continued use of any non-Acur a coolant can result in
corrosion, causing the cooling system to malfunction
or fail. Have the cooling system flushed and refilled
with Acura antifreeze/cool ant 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.
Reserve
TankMAX
MIN

376
Maintenance
Checking and Maintaining Tires
Checking Tires
To safely operate your vehicle, your tires must be of the proper type and size, in
good condition with adequate tread, and properly inflated.
■Inflation guidelines
Properly inflated tires provide the best combination of handling, tread life, and comfort.
Refer to the driver’s doorjamb label or spec ification’s page for the specified pressure.
Underinflated tires wear unevenly, adversely affect handling and fuel economy, and
are more likely to fail from overheating.
Overinflated tires make your vehicle ride harshly, are more prone to road hazards,
and wear unevenly.
Every day before you drive, look at each of the tires. If one looks lower than the
others, check the pressure with a tire gauge.
At least once a month and before long trip s, use a gauge to measure the pressure in
all tires, including the spare. Even tires in good condition can lose 1 to 2 psi (10 to
20 kPa, 0.1 to 0.2 kgf/cm
2) per month.
■Inspection guidelines
Every time you check inflation, also examine the tires and valve stems.
Look for:
• Bumps or bulges on the side or in the tread. Replace the tire if you find any cuts,
splits, or cracks in the si de of the tire. Replace it if you see fabric or cord.
• Remove any foreign objects and inspect for air leaks.
• Uneven tread wear. Have a deal er check the wheel alignment.
• Excessive tread wear.
2 Wear Indicators P. 381
•Cracks or other damage around valve stem.
1Checking Tires
Measure the air pressure when tires are cold. This
means the vehicle has been parked for at least three
hours, or driven less than 1 mile (1.6 km). If
necessary, add or releas e air until the specified
pressure is reached.
If checked when hot, tire pressure can be as much as
4–6 psi (30–40 kPa, 0.3–0.4 kgf/cm
2) higher than if
checked when cold.
Have a dealer check the tires if you feel a consistent
vibration while driving. Ne w tires and any that have
been removed and reinst alled should be properly
balanced.
3WARNING
Using tires that are excessively worn or
improperly inflated can cause a crash in
which you can be seriously hurt or killed.
Follow all instruction s in this owner’s
manual regarding ti re inflation and
maintenance.

432
Information
Specifications
■Vehicle Specifications
*1: 2WD models
*2: AWD models
■Air Conditioning
ModelAcura RDX
No. of Passengers:
Front 2
Rear 3
Total 5
Weights:Gross Vehicle
Weight RatingU.S.:4,850 lbs (2,200 kg)*1
4,982 lbs (2,260 kg)*2
Canada:2,260 kgGross Axle Weight
Rating (Front)U.S.:2,557 lbs (1,160 kg)*1
2,623 lbs (1,190 kg)*2
Canada:1,190 kgGross Axle Weight
Rating (Rear)U.S.:2,293 lbs (1,040 kg)*1
2,381 lbs (1,080 kg)*2
Canada:1,080 kg
Gross Combined Weight
Rating U.S.: 6,349 lbs (2,880 kg)*1
6,482 lbs (2,940 kg)*2
Canada:2,940 kg
Refrigerant Type HFC-134a (R-134a)Charge Quantity15.2 – 16.9 oz (430 – 480 g)Lubricant TypeND-OIL8Quantity4.3 – 5.0 cu-in (70 – 82 cm3)
■
Engine Specifications
■ Fuel
■ Washer Fluid
Displacement211.8 cu-in (3,471 cm3)
Spark Plugs NGK ILZKR7B11
DENSO SXU22HCR11
TypeUnleaded premium gasoline, Pump octane
number of 91 or higher
Fuel Tank Capacity 16 US gal (60.5 ℓ)
Tank CapacityU.S.: 2.6 US qt (2.5 ℓ)
Canada: 5.1 US qt (4.85 ℓ)
■ Light Bulbs
■ Brake Fluid
Headlights (High Beams)LED
Headlights (Low Beams) LED
Fog Lights*55W (H11)
Front Turn Signal/Parking Lights/
Daytime running light LED
Side Turn Signal Lights
(on Door Mirrors)LED
Front Side Marker Lights 3CP
Rear Side Marker/Brake/TaillightsLED
Back-Up Lights 16W
Rear Turn Signal Lights21W (Amber)
High-Mount Brake Light LED
Rear License Plate Light5W
Cargo Area Lights 5W
Vanity Mirror Lights1.4W
Interior Lights
Map LightsLED
Ceiling Light 8W
Door Courtesy Lights2CP
Console Compartment Light 1.4W
Glove Box Light1.4W
Center Pocket Light LED
SpecifiedAcura Heavy Duty Brake Fluid DOT 3
* Not available on all models

447
Index
System Message ....................................... 77
Transmission ............................................. 70
Turn Signal ............................................... 75
Vehicle Stability Assist (VSA®)
System ............................................ 73, 311
VSA ® OFF.......................................... 73, 312
Information .............................................. 431
Instrument Panel ........................................ 67
Brightness Control .................................. 156
Interior Lights ........................................... 171
Interior Rearview Mirror ......................... 161
iPod ®......................................................... 207
J
Jack (Wheel Nut Wrench) ........................ 400
Jump Starting ........................................... 417
K
Key Number Tag ...................................... 123
Keyless Access System .............................. 125
Keyless Lockout Prevention ..................... 128
Keys ........................................................... 121
Lockout Prevention ................................. 128
Number Tag............................................ 123
Rear Door Won’t Open ........................... 131
Remote Transmitter ................................ 127
Two-way Keyless Access
Remote ................................. 121, 129, 272
Types and Functions................................ 121 Kickdown (Automatic Transmission)
....... 276
L
Lane Departure Warning (LDW).............. 299
Lane Keeping Assist System (LKAS) ......... 303
Language (HFL) ......................................... 227
LATCH (Child Seats) .............................. 57, 60
LDW (Lane Departure Warning) .............. 299
Lights ................................................. 149, 365
Automatic ............................................... 150
Bulb Replacement .................................... 365
Daytime Running Lights ........................... 152
Fog Lights ................................................ 152
High Beam Indicator .................................. 75
Interior .................................................... 171
Light Switches ......................................... 149
Lights On Indicator .................................... 76
Turn Signals and Hazard Warning ............ 149
Load Limits ................................................ 261
Locking/Unlocking .................................... 121
Auto Door Locking/Unlocking .................. 132
Childproof Door Locks ............................. 131
From Inside .............................................. 130
From Outside ........................................... 125
Keys ........................................................ 121
Using a Key ............................................. 128
Lockout Prevention System ...................... 128
Low Battery Charge .................................. 422
Low Fuel Indicator ...................................... 71
Low Oil Pressure Indicator ................. 69, 422Lower Anchors
...................................... 57, 60
Luggage (Maximum Load Limit) ............. 261
Lumbar Support ....................................... 164M
Maintenance............................................. 345
Battery .................................................... 385
Brake Fluid .............................................. 363
Cleaning ................................................. 389
Climate Control System ........................... 388
Coolant ................................................... 360
Maintenance Minder
TM............................ 349
Oil ........................................................... 356
Precautions ............................................. 346
Radiator .................................................. 361
Remote Transmitter ......................... 386, 387
Replacing Light Bulbs .............................. 365
Safety...................................................... 347
Service Items ........................................... 351
Tires ........................................................ 376
Transmission Fluid ................................... 362
Under the Hood ...................................... 353
Malfunction Indicator Lamp .............. 69, 423
Map Lights ................................................ 171
Maximum Load Limit ............................... 261
Meters, Gauges ........................................... 95