POOR FUEL ECONOMY

2008 Honda Civic

Tiny

gbemiadio

February, 13, 2012 AT 10:04 AM

My 2008 Honda civic (i bought it brand new, ) fuel economy is so bad. I try my best to take all precautions to ensure the fuel economy is improved (using tips after 'googling') but its not helping. I already change the plugs and fuel line components. What can I do next. Please advice.

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10 Answers

Tiny

Wrenchtech

February, 13, 2012 AT 10:53 AM

How many MPG do you get local and highway?

Tiny

gbemiadio

February, 13, 2012 AT 2:35 PM

16mpg local and 19mpg highway

Tiny

Wrenchtech

February, 13, 2012 AT 4:55 PM

That's pretty far out of line. Is the check engine light ever coming on?
Do you have stock tires and wheels?

Tiny

Wrenchtech

February, 13, 2012 AT 5:00 PM

How about the exhaust system? Is that stock?

Tiny

gbemiadio

February, 14, 2012 AT 11:07 AM

The tires are not stock neither is the exhaust stock. The engine light is not on.I service it at 5000km interval consistently.
I have done all I know to do and I have not seen any improvement.

Tiny

Wrenchtech

February, 14, 2012 AT 11:24 AM

The aftermarket tires and exhaust are likely the cause. The tires will dramatically change the gear ratio and the exhaust will effect the backpressure.

Tiny

gbemiadio

February, 14, 2012 AT 11:55 AM

Should I change the tires? If yes please recommend. What can I do about the exhaust?

Tiny

Wrenchtech

February, 14, 2012 AT 11:59 AM

The EPA fuel mileage estimates are assigned to the factory configuration of the vehicle. Aftermarket mods will always change that.

Tiny

gbemiadio

February, 14, 2012 AT 12:05 PM

What kind of tires should I buy to replace the ones am using now?

Tiny

Wrenchtech

February, 14, 2012 AT 12:08 PM

Everything should be exactly as the car came from the factory if fuel mileage is your priority.

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