2023-2026 Honda Civic 4 Door Driving -> Refueling User Manual
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Driving -> Refueling for Your Honda Civic 4 Door Eleventh Generation (2023-2026)

Refueling  
Fuel Information  
■
Fuel recommendation  
Models with capless fuel filler  
1Fuel Information  
NOTICE  
We recommend quality gasoline 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 recommend the use of gasoline  
that does NOT contain harmful manganese-based  
fuel additives such as MMT, if such gasoline is  
available.  
Unleaded gasoline, pump octane number 87 or higher  
Use of a lower octane gasoline can cause a persistent, heavy metallic knocking noise  
that can lead to engine damage.  
Models without capless fuel filler  
Unleaded premium gasoline, pump octane number 91 or higher  
Use of a lower octane gasoline can cause occasional 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.  
Use of gasoline with these additives may adversely  
affect performance, and 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 gasoline containing methanol.  
If you notice any undesirable operating symptoms, try  
another service station or switch to another brand of  
gasoline.  
■
Top tier detergent gasoline  
Because the level of detergency and additives 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 detergent additives and be free of metallic  
additives. The proper level of detergent additives, and absence of harmful metallic  
additives in gasoline, help avoid buildup of deposits in your engine and emission  
control system.  
Continued  
681  
uuRefuelinguFuel Information  
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 gasoline. For more information on top  
tier gasoline, visit www.toptiergas.com.  
Models with capless fuel filler  
■
Fuel tank capacity: 12.39 US gal (46.9 L)  
Models without capless fuel filler  
■
Fuel tank capacity: 12.4 US gal (47.0 L)  
682  
uuRefuelinguHow to Refuel  
How to Refuel  
Models with capless fuel filler  
1How 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 seals itself again when you pull out the filler  
nozzle.  
3
WARNING  
Gasoline is highly flammable and explosive.  
You can be burned or seriously injured  
when handling fuel.  
1. Stop your vehicle with the service station  
pump on the left side of the vehicle in the  
rear.  
• Stop the engine, and keep heat, sparks,  
and flames away.  
2. Turn off the engine.  
3. Unlock the driver's door.  
u The fuel fill door on the outer side of the  
vehicle will unlock.  
Press  
• Handle fuel only outdoors.  
• Wipe up spills immediately.  
Fuel Fill Door  
2 Locking/Unlocking the Doors from  
the Inside P. 188  
The fuel filler opening is designed to accept only  
service station filler nozzles for refueling. Use of  
smaller diameter 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.  
4. Press and release the area indicated by the  
arrow to release the fuel fill door. You will  
hear a click and the lid will open slightly.  
5. Manually pull the fuel fill door to a fully  
open position.  
Continued  
683  
uuRefuelinguHow to Refuel  
6. Place the end of the filler nozzle on the  
lower part of filler opening, then insert it  
slowly and fully.  
1How to Refuel  
Use the lock tab or the master 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 briefly opening then closing the  
driver's door.  
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.  
If the filler nozzle keeps turning off when the tank is  
not full, there may be a problem with the pump's fuel  
vapor recovery system. Try filling at another pump. If  
this does not fix the problem, consult a dealer.  
u If you do not fill up the tank to full,  
always add a minimum of 1.3 US gal (5 L)  
of fuel.  
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.  
u After filling, wait about five seconds  
before removing the filler nozzle.  
7. Shut the fuel fill door by hand.  
Do not continue to add fuel after the filler nozzle has  
automatically stopped. Additional fuel can exceed  
the full tank capacity.  
If you repeatedly fill the tank with less than the  
specified minimum amount of fuel, the malfunction  
indicator lamp may come on. If this happens, have  
your vehicle checked by a dealer.  
If you have to refuel your vehicle from a portable  
container, use the funnel provided with your vehicle.  
2 Refueling From a Portable Fuel Container  
P. 809  
684  
uuRefuelinguHow to Refuel  
How to Refuel  
Models without capless fuel filler  
1How to Refuel  
1. Stop your vehicle with the service station  
pump on the left side of the vehicle in the  
rear.  
3
WARNING  
Gasoline is highly flammable and explosive.  
You can be burned or seriously injured  
when handling fuel.  
2. Turn off the engine.  
3. Unlock the driver's door.  
u The fuel fill door on the outer side of the  
vehicle will unlock.  
Press  
• Stop the engine, and keep heat, sparks,  
and flames away.  
Fuel Fill Door  
2 Locking/Unlocking the Doors from  
the Inside P. 188  
• Handle fuel only outdoors.  
• Wipe up spills immediately.  
4. Press and release the area indicated by the  
arrow to release the fuel fill door. You will  
hear a click and the lid will open slightly.  
5. Manually pull the fuel fill door to a fully  
open position.  
Use the lock tab or the master 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 briefly opening then closing the  
driver's door.  
6. Remove the fuel fill cap slowly. If you hear a  
release of air, wait until this stops, then turn  
the knob slowly to open the fuel fill cap.  
If the filler nozzle keeps turning off when the tank is  
not full, there may be a problem with the pump's fuel  
vapor recovery system. Try filling at another pump. If  
this does not fix the problem, consult a dealer.  
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.  
Cap  
Do not continue to add fuel after the filler nozzle has  
automatically stopped. Additional fuel can exceed  
the full tank capacity.  
Continued  
685  
uuRefuelinguHow to Refuel  
1How to Refuel  
7. Place the fuel fill cap in the holder.  
8. Insert the fuel filler nozzle fully.  
u When the tank is full, the filler nozzle will  
click off automatically. This leaves space  
in the fuel tank in case the fuel expands  
with a change in the temperature.  
u If you do not fill up the tank to full,  
always add a minimum of 1.3 US gal (5 L)  
of fuel.  
Holder  
If you repeatedly fill the tank with less than the  
specified minimum amount of fuel, the malfunction  
indicator lamp may come on. If this happens, have  
your vehicle checked by a dealer.  
Cap  
9. After filling, replace the fuel fill cap,  
tightening it until you hear it click at least  
once.  
u Shut the fuel fill door by hand.  
686  

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