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#1
10-21-2008, 12:12 AM
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Horrible gas mileage... Any ideas...
My cars getting about 30 MPG... I know that that is good, but I was getting close to 40 before I did a ton of maintenace to my car...
I did the following: Change brakes Change Distributer cap and Rotor Change Spark Plugs Change Oil Change Timing Belt/Water Pump Change PCV Valve Change Air Filter New Thermostat and Radiator New Oil pan gasket New Valve Cover Gasket Not sure why my car dropped so much in gas mileage  Any ideas? I'm going to replace the clutch in a week cause the car is slipping a bit (was before) and hoping this will help, but I'm stumped on why it decreased so much.. . I probably shouldn't have done so much maintenace at once... LOL 
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#2
10-21-2008, 07:07 AM
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Re: Horrible gas mileage... Any ideas...
I wish mine was getting 30 mpg, I'm lucky if I hit 28, most of the time its 25.
Check to see if your IAT and O2 Sensor are still good. You should get a CEL from them, but that doesn't always mean anything if you don't.
__________________
Tony 91 Civic Sedan DX - Stock 287k Miles
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#3
10-21-2008, 12:16 PM
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Re: Horrible gas mileage... Any ideas...
Also the new brakes may need to wear in. Brakes can actually lose you horsepower and cause drag till they are good and worn.
__________________
Cheap, Fast, Reliable..Pick two  Current project: Rio Red 91 hatch. A6/Z6 build, Hondata S300, Tokico illumina/Ground Control. "I'd rather run 12's on steelies than 15's on rotas."
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#4
10-21-2008, 12:17 PM
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Re: Horrible gas mileage... Any ideas...
Then again, I get 30-32 mpg right now, and always have..
__________________
Cheap, Fast, Reliable..Pick two Current project: Rio Red 91 hatch. A6/Z6 build, Hondata S300, Tokico illumina/Ground Control. "I'd rather run 12's on steelies than 15's on rotas."
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#5
10-21-2008, 02:47 PM
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Re: Horrible gas mileage... Any ideas...
I forgot to mention. I did replace the O2 sensor as well. I wasn't throwing a code, but I figured since the car has 202,000 miles on it to replace it since it was stock...
I just filled up today and got 33.8 MPG... Perhaps some things need to be worn in... I'm going to triple check my exhaust cause I know I have a leak (well I have had one for quite some time)... Will replace Clutch this Sunday and get all the Exhaust Leaks fixed then I should be good for a while hopefully... I was getting close to 40 though so I I will give it another fill-up and see what happens unless there is anything else....
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