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Old 06-21-2014, 08:14 AM   #3 (permalink)
nemo
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Join Date: Nov 2010
Location: US
Posts: 1,016

Chief - '06 Pontiac Grand Prix
90 day: 26.7 mpg (US)

SF1 - '12 Ford Fiesta S
90 day: 30.95 mpg (US)
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Have you installed some type of instant FE gauge yet. I think that most people here will agree that the vast majority of their FE increase comes from driving style. May have missed it but a picture of your air might be helpful for comments. If you believe its not working modify or remove it. Tank to tank testing is not the best method. For me it wouldn't even be close, were I drive and conditions vary too much.
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