2018 HONDA CIVIC SEDAN Owner's Manual (in English)

503Continued
Driving
Refueling
Fuel Information
■Fuel recommendation
Use of a lower octane gasoline can cause a persistent, heavy metallic knocking noise
that can lead to engine damage.
Use of a lower octane gasoline can cause oc casional metallic knocking noise in the
engine and will result in decreased engine performance.
Use of a gasoline with a pump octane less than 87 can lead to engine damage.
■Top tier detergent gasoline
Because the level of detergency and additive s in gasoline vary in the market, Honda
endorses the use of “TOP TIER Detergent Gasoline” where available to help
maintain the performance and reliability of your vehicle. TOP TIER Detergent
Gasoline meets a new gasoline standard jointly established by leading automotive
manufacturers to meet the needs of today’s advanced engines.
Qualifying gasoline retailers will, in most cases, identify their gasoline as having met
“TOP TIER Detergent Gasoline” standards at the retail location. This fuel is
guaranteed to contain the proper level of de tergent additives and be free of metallic
additives. The proper level of detergent ad ditives, and absence of harmful metallic
additives in gasoline, help avoid build-up of deposits in your engine and emission
control system.
For further important fuel-related information for your vehicle, or on information on
gasoline that does not contain MMT, visit www.hondacars.com. In Canada, visit
www.honda.ca for additional information on gaso line. For more information on top
tier gasoline, visit www.toptiergas.com .
Unleaded gasoline, pump octane number 87 or higher
Unleaded premium gasoline, pump octane number 91 or higher
1Fuel Information
NOTICE
We recommend quality ga soline containing
detergent additives that help prevent fuel system and
engine deposits. In addition, in order to maintain
good performance, fuel economy, and emissions
control, we strongly reco mmend the use of gasoline
that does NOT contain harmful manganese-based
fuel additives such as MMT, if such gasoline is
available.
Use of gasoline with these additives may adversely
affect performance, a nd cause the malfunction
indicator lamp on your instrument panel to come on.
If this happens, contact a dealer for service.
Some gasoline today is blended with oxygenates such
as ethanol. Your vehicle is designed to operate on
oxygenated gasoline containing up to 15% ethanol
by volume. Do not use gaso line containing methanol.
If you notice any undesira ble operating symptoms, try
another service station or sw itch to another brand of
gasoline.
Models without SPORT mode
Models with SPORT mode
18 CIVIC 4D HCM (KA KC KL)-31TBA6201.book 503 ページ ２０１８年１０月３０日 　火曜日　午前７時２８分

uuRefueling uHow to Refuel
504
Driving
■Fuel tank capacity: 12.39 US gal (46.9 liters)
■Fuel tank capacity: 12.4 US gal (47.0 liters)
How to Refuel
Your fuel tank is not equipped with a fuel filler cap. You can insert the filler nozzle
directly into the filler neck. The tank seal s itself again when you pull out the filler
nozzle.
1.Stop your vehicle with the service station
pump on the left side of the vehicle in the
rear.
2. Turn off the engine.
3. Unlock the driver’s door using the master
door lock switch.
u The fuel fill door on the outer side of the
vehicle will unlock.
2 Locking/Unlocking the Doors from
the Inside P. 146
4.Press the area indicated by the arrow to
release the fuel fill door. You will hear a
click.
Models without detachable towing hook
Models with detachable towing hook
1How to Refuel
The fuel filler opening is designed to accept only
service station filler nozzles for refueling. Use of
smaller diamet er tubes (e.g., those used to siphon
fuel for other uses) or other non-service station
devices can damage the area in and around the filler
opening.
Use the lock tab or the ma ster door lock switch to
unlock the fuel fill door.
The vehicle doors and fuel fill door automatically
relock if the remote unlock function is used. This can
be deactivated by briefl y opening then closing the
driver’s door.
The fuel fill door and its latching mechanism can be
permanently damaged if the fuel fill door is forced
closed when the driver’s door is locked.
3WARNING
Gasoline is highly flammable and explosive.
You can be burned or seriously injured
when handling fuel.
• Stop the engine, and keep heat, sparks,
and flame away.
• Handle fuel only outdoors.
• Wipe up spills immediately.
Press
18 CIVIC 4D HCM (KA KC KL)-31TBA6201.book 504 ページ ２０１８年１０月３０日 　火曜日　午前７時２８分

505
uuRefueling uHow to Refuel
Driving
5. Place the end of the filler nozzle on the
lower part of filler opening, then insert it
slowly and fully.
u Make sure that the end of the filler
nozzle goes down along with the filler
pipe.
u Keep the filler nozzle level.
u When the tank is full, the filler nozzle will
click off automatically.
u After filling, wait about five seconds
before removing the filler nozzle.
6. Shut the fuel fill door by hand.1How to Refuel
The filler nozzle automatically stops to leave space in
the fuel tank so that fuel does not overflow as a result
of changes in air temperature.
If the filler nozzle keeps tu rning off when the tank is
not full, there may be a problem with the pump’s fuel
vapor recovery system. Try fi lling at another pump. If
this does not fix the problem, consult a dealer.
Do not continue to add fuel after the nozzle has
automatically stopped. Addi tional fuel can exceed
the full tank capacity.
If you have to refuel yo ur vehicle from a portable
container, use the funnel pr ovided with your vehicle.
2 Refueling From a Portable Fuel Container
P. 616
18 CIVIC 4D HCM (KA KC KL)-31TBA6201.book 505 ページ ２０１８年１０月３０日 　火曜日　午前７時２８分

506
Driving
Fuel Economy and CO2 Emissions
Improving Fuel Economy and Reducing CO2
Emissions
Achieving fuel economy and reducing CO2 emissions is dependent on several
factors, including driving conditions, load weight, idling time, driving habits, and
vehicle condition. Depending on these and other factors, you may not achieve the
rated fuel economy of this vehicle.
You can optimize your fuel economy with proper maintenance of your vehicle.
Always maintain your vehicle in accordance with the messages displayed on the
information display
*/driver information interface*.
• Use the recommended viscosity engine oil, displaying the API Certification Seal.
• Maintain the specified tire pressure.
• Do not load the vehicl e with excess cargo.
• Keep your vehicle clean. A buildup of snow or mud on your vehicle's underside
adds weight and increases wind resistance.
■Maintenance and Fuel Economy
1Improving Fuel Economy and Reducing CO2 Emissions
Direct calculation is the recommended method to
determine actual fuel consumed while driving.
In Canada, posted fuel economy numbers are
established following a simulated test. For more
information on how this test is performed, please visit
http://oee.nrcan.gc.ca/
Miles driven Gallons of
fuel Miles per
Gallon
100 Liters of
fuel Kilometers
driven L per 100 km
* Not available on all models
18 CIVIC 4D HCM (KA KC KL)-31TBA6201.book 506 ページ ２０１８年１０月３０日
　火曜日　午前７時２８分

507
Driving
Turbo Engine Vehicle*
Handling Precautions
The turbocharger is a high-precision device to obtain greater horsepower by
delivering a large volume of compressed air into the engine using a turbine driven by
the engine’s exhaust gas pressure.
• When the engine is cold just after sta rting, avoid revving the engine or sudden
acceleration.
• Always replace the engine oil and engine oil filter according to the Maintenance
Minder. The turbine rotates at very high speeds over 100,000 rpm and its
temperature reaches over 1,2 92°F (700°C). It is lubricated and cooled by engine
oil. If you fail to replace the engine oil and filter at the scheduled distance or
interval, deteriorated engine oil may caus e failure such as sticking and abnormal
noise of the turbine bearing.1 Turbo Engine Vehicle*
The scheduled maintenance intervals for replacing
the filter is indicated on the driver information
interface. Follow the information of when to replace
them. 2 Maintenance Minder
TM P. 513
The temperature gauge pointer is at the mark
when you restart the engi ne after driving under high
load conditions such as at high speed or in hilly
terrain. This is normal. The gauge goes down after
you idle or drive the vehi cle for about one minute.
H
* Not available on all models
18 CIVIC 4D HCM (KA KC KL)-31TBA6201.book 507 ページ ２０１８年１０月３０日 　火曜日　午前７時２８分

508
18 CIVIC 4D HCM (KA KC KL)-31TBA6201.book 508 ページ ２０１８年１０月３０日　火曜日　午前７時２８分

509
Maintenance
This chapter discusses basic maintenance.
Before Performing MaintenanceInspection and Maintenance ............ 510
Safety When Performing Maintenance .... 511Parts and Fluids Used in Maintenance Service ........................................... 512
Maintenance Minder
TM..................... 513
Maintenance Under the Hood
Maintenance Items Un der the Hood .... 523Opening the Hood ........................... 525
Recommended Engine Oil ................ 526
Oil Check ......................................... 527
Adding Engine Oil ............................ 529
Changing the Engine Oil and Oil Filter..... 530
Engine Coolant ................................ 533
Transmission Fluid ............................ 535
Brake/Clutch
* Fluid .......................... 536
Refilling Window Washer Fluid......... 537
Replacing Light Bulbs ....................... 538
Checking and Maintaining Wiper Blades.... 547Checking and Maintaining Tires
Checking Tires ................................. 550
Tire and Loading Information Label .. 551
Tire Labeling .................................... 551
DOT Tire Quality Grading (U.S. Vehicles).. 553Wear Indicators................................ 555
Tire Service Life ................................ 555 Tire and Wheel Replacement ........... 556
Tire Rotation .................................... 557
Winter Tires ..................................... 558
Battery ............................................... 560
Remote Transmitter Care Replacing the Button Battery ........... 562
Heating System
*/Climate Control
System* Maintenance .................... 564
Cleaning Interior Care .................................... 565
Exterior Care.................................... 567
Accessories and Modifications Accessories ...................................... 570
Modifications................................... 571
* Not available on all models
18 CIVIC 4D HCM (KA KC KL)-31TBA6201.book 509 ページ ２０１８年１０月３０日 　火曜日　午前７時２８分

510
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.)
■Daily inspections
Perform inspections before long distance trips, when washing the vehicle, or when
refueling.
■Periodic inspections
• Check the brake/clutch* fluid level monthly.
2 Brake/Clutch* Fluid P. 536
•Check the tire pressure monthly. Examin e the tread for wear and foreign objects.
2Checking and Maintaining Tires P. 550
•Check the operation of the exterior lights monthly.
2 Replacing Light Bulbs P. 538
•Check the condition of the wiper bl ades at least every six months.
2Checking and Maintaining Wiper Blades P. 547
■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 ma intenance services should
be performed in accordan ce with the intervals
indicated by the information display
*/driver
information interface*.
2 Maintenance Service Items P. 515, 520
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. 629
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
* Not available on all models
18 CIVIC 4D HCM (KA KC KL)-31TBA6201.book 510 ページ ２０１８年１０月３０日 　火曜日　午前７時２８分