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Whys my 2010 honda accord getting bad gas mileage?

  

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All my fluids and clean and new. 3800 mile oil change 5w20 Mobil 1. Clean air filter clean maf senor, only use shell gas.

im getting about 400-425 km for 70 liters which is = 13.4 miles/gallon

but the car should get about 21 mile/gallon in city

 

it also has a long crank when starting but when in ignition and i tap gas lightly then turn, it starts normally

what is the problem?

 

thanks


1 Answer
1

How much on the odometer? How does the motor run?

I would start by taking a good look at the spark plugs, and maybe doing a compression test.

https://www.youtube.com/watch?v=_8KvLHrBkf0


only 95000 km so 62000 miles. runs, shifts and idles perfect


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