2019 HONDA CLARITY PLUG-IN fuel additives

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Page 456 of 591

HONDA CLARITY PLUG-IN 2019  Owners Manual (in English) 454
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 detergen

Page 492 of 591

HONDA CLARITY PLUG-IN 2019  Owners Manual (in English) 490
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 c

Page 582 of 591

HONDA CLARITY PLUG-IN 2019  Owners Manual (in English) Index
580
Index
Index
Numbers
120V AC (AC Level 1)................................ 459
12-Volt Battery Charging System  Indicator ............................................  90, 548
240V AC (AC Leve