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Discussion Starter #1
Getting some pretty dismal gas mileage, hit all of the usual suspects.

Oil changed, 0w20 from Honda
New Air Filter
Spark plugs replaced with OEM NGK

Only thing I can think of now, is ignition coils? Would that possibly cause bad mileage? If not, where else can I look?

By poor, I mean like 15-16L / 100KM City, 11-12 Highway
 

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Valve adjustment? Any CELs?
 

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Did you disconnect the battery during the maint? Maybe the ECU hasn't relearned your driving habits yet or it picked up a less fuel efficient one after the change. Taking a SWAG.
 

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I highly doubt there is anything wrong. With your x as the mileage is on par with where it should be. The original rating is 13.2l/100km in city and 9.3/100km. Yours is about 1-2L/100km more, which is expected as most people don't get the official published mileage. My 2011 is about 15L/100 in the city and 11L/100km on the highway
 

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Discussion Starter #7
Thanks for the responses.

I connected a BlueTooth OBD2 Scanner, no pending codes.

Ngan202, I saw a few other people post considerably better mileage, but maybe they're flukes :p

I did DC the battery, but that was probaby 6 months back now.
 
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