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Old 11-15-2007, 12:34 PM   #11
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I just got my first tank results. 290 miles from 15 gallons. This is with about 70% highway, 30% city driving. This equates to just shy of 20 mpg. I believe that this is a little low for what you guys are suggesting as to fuel economy. Should this be close to what I'd be getting if it was all city driving? Please advise.
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Old 11-15-2007, 03:45 PM   #12
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I run about 20 Mpg all city... I have easily done 320-330 on 15 Gallons

I'd expect you to be in the 24-26 Range with the Mixed driving like you have

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Old 11-16-2007, 10:18 AM   #13
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Guess its time to put a new fuel filter on and find somebody with a scan tool to see what this O2 sensor is doing. My girlfriend has a 94' 88 and its fuel economy is similar to what I just got, so who knows. With gas headed to $4.00/gal, I want to make sure this thing runs like a top. Its sad when you have an LS1 that has almost a 2 liter soda bottle'* worth more displacement amongst two more cylinders and it gets better gas mileage than this.
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