Question about 2004 Chevrolet Aveo

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Chevy Aveo - Lousy Fuel Milage, From 33+hwy to 19mpg

The 2004 Daewoo/Chevy Aveo Starts easy, runs fine, but for some reason there was a loss of power, rough idle and poor milage, but no real smell of gas.
The plugs were gapped and replaced, STP Injection cleaner was added and the car ran normal.... for a few days... More STP did seem to bring up the milage again, but this a band aid.

Any other ideas?


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  • Anonymous Dec 21, 2008

    Part II, Part of the header got cut off, What the real problem is, Is that it went from 33mpg to 19 in a day! So Simple service is not going to make the differance



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Try giving your car a simple service, change oil, oil filter, air filter, plugs and leads etc. also get your wheels aligned and balanced as having bad geo can also be bad for fuel consumption. if that doesnt work then id recomend a garage.

Posted on Dec 18, 2008


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