2021 HONDA CLARITY PLUG-IN fuel additives

457
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.
■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 .
■Fuel tank capacity: 7. 0 US gal (26.5 liters)
Unleaded gasoline, pump octane number 87 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 inst rument 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.
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494
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 coolan t level every time you refuel or you
charge the High Voltage battery. Check the re serve 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: Honda Long Life Antifreeze/Coolant Type 2
■Reserve Tank
1Engine Coolant
NOTICE
Genuine Honda engine coolan t 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 Honda 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-Honda coolant can result
in corrosion, causing the cooling system to
malfunction or fail. Have the cooling system flushed
and refilled with Honda anti freeze/coolant as soon as
possible.
Do not add rust inhibitors or other additives to your
vehicle’s cooling system. Th ey may not be compatible
with the coolant or with the engine components.
Reserve
Tank
MAX
MIN
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Index
585
Index
Index
Numbers
120V AC (AC Level 1)............................... 462
12-Volt Battery Charging System Indicator ........................................... 93, 552
240V AC (AC Level 2) ............................... 465
A
ABS (Anti-lock Brake System) .................. 443
Accessories and Modifications ................ 525
Accessory Power Sockets ......................... 191
Acoustic Vehicle Alerting System ............ 397
Adaptive Cruise Control (ACC) with Low
Speed Follow .......................................... 404
Indicator ................................................. 102
Additives
Coolant .................................................. 494
Engine Oil ............................................... 488
Washer ................................................... 499
Additives, Engine Oil ............................... 488
Adjusting
Armrest .................................................. 184
Front Seats.............................................. 177
Head Restraints ....................................... 180
Mirrors.................................................... 175
Steering Wheel ....................................... 174
Temperature ........................................... 128
Agile Handling Assist ............................... 430
Air Conditioning System (Climate Control System) .................................................... 195
Changing the Mode................................ 197 Defrosting the Windshield and
Windows ............................................... 199
Dust and Pollen Filter ............................... 518
Sensors .................................................... 203
Synchronized Mode ................................. 200
Using Automatic Climate Control ............ 195
Air Pressure ....................................... 506, 573
Airbags ........................................................ 54
Advanced Airbags ..................................... 60
Airbag Care ............................................... 70
Driver’s Knee Airbag .................................. 62
Event Data Recorder .................................... 0
Front Airbags (SRS) .................................... 57
Indicator .............................................. 67, 96
Passenger Front Airbag Off Indicator ......... 68
Sensors ...................................................... 54
Side Airbags .............................................. 64
Side Curtain Airbags .................................. 66
AM/FM Radio ............................................ 245
Android Auto ............................................ 282
Anti-lock Brake System (ABS) .................. 443
Indicator .................................................... 95
Apple CarPlay ........................................... 279
Armrest ..................................................... 184
Audio Remote Controls ............................ 209
Audio System .................................... 206, 212
Adjusting the Sound ................................ 238
Audio/Information Screen ........................ 213
Changing the Home Screen Icon Layout .. 221
Changing the Screen Interface ................. 235
Closing Apps ........................................... 237 Customizing the Meter............................ 221
Display Setup .......................................... 239
Error Messages ........................................ 286
General Information ................................ 290
Home Screen........................................... 227
Limitations for Manual Operation ............ 240
Menu Customize ..................................... 236
MP3/WMA/AAC ...................................... 266
Reactivating ............................................ 208
Recommended Devices............................ 292
Remote Controls ..................................... 209
Security Code .......................................... 208
Selecting an Audio Source ....................... 240
Status Area ............................................. 234
Theft Protection ...................................... 208
USB Flash Drives ...................................... 292
USB Port.................................................. 207
Voice Control Operation.......................... 241
Wallpaper Setup...................................... 225
Audio/Information Screen ....................... 213
Authorized Manuals ................................ 582
Auto Door Locking/Unlocking ................. 151
Automatic Brake Hold ............................. 441
Indicator............................................ 89, 441
Automatic Brake Hold System
Indicator............................................ 89, 441
Automatic Lighting .................................. 165
Average Fuel Economy ............................ 128
Average Fuel Economy Records .............. 131
Average Speed ......................................... 129
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