Honda Civic 2017 Owner's Manual page 29

1.5 L and 1.8 L engine models
Refueling
(P537)
Fuel
Thai models
recommendation: Unleaded petrol/gasohol up to E20 (80% petrol and 20% ethanol), research octane number 91 or higher
Other models
Unleaded petrol, research octane number 91 or higher
Fuel tank capacity: 47 L
a
Unlock the driver's door.
2 Locking/Unlocking the Doors from the Inside (P195)
b
Press the edge of the fuel fill door to make it pop up
slightly.
c
Turn the fuel fill cap slowly to remove the cap.
d
Place the cap in the holder on the fuel fill door.
e
After refueling, screw the cap back on until it clicks at
least once.
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