Very bad fuel economy for 2000 mitsubishi eclipse?

I had recently purchased a second hand 00 eclipse. The oxygen sensors were changed, used the fuel injector cleaner, and had the air filter changed. Yet I still get something like 14 gallons per mile out of the car. Is there anything I can look out for? I found out online that on local road it is approx. 20 miles per gallon and 28 on highway. I know these are %26quot;exaggerated%26quot; sometimes, but I still think 14 miles to a gallon is a very bad economy.
Very bad fuel economy for 2000 mitsubishi eclipse?
i own a repair shop and they do a lot better than that one is,id take it a shop and have it checked out real good,i think it may be in need of a real good basic tune up ,and a good mechanic needs to do it,this way he,ll know what to look for on it,i service a lot of those cars and they do way better than that one does,good luck with it hope this helps.
Very bad fuel economy for 2000 mitsubishi eclipse?
14 gallons per mile! wow!!
you might have a bad piston ring, it would cause a blowby and reduced power. it too would make is so that you mpg is alot worse. the first thing i would do i check the spark plugs and timing, if neither of those help i would have a good mechanic look at it for a definate answer.
have the plugs replaced , and probably the intake or exhaust is restricted. pug the computer to it.
that's very poor gas miles try changing the oil, spark plugs,fuel filter and gas treatment

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