Thread: Best ROI 4 MPG
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Old 04-20-2011, 06:42 PM   #5 (permalink)
mcmancuso
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Join Date: Mar 2010
Location: TN-USA
Posts: 61

Green Metro - '99 Chevrolet Metro LSi Sedan
90 day: 32.78 mpg (US)

Metro Vert - '91 Geo Metro LSi Convertible
90 day: 50.52 mpg (US)
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CAI is only good for increasing HP, may actually decrease fuel economy, same with foam filter. Slant bed covers are really a DIY project, not something generally commercially available IIRC.
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