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Old 04-19-2010, 01:41 PM   #7 (permalink)
orange4boy
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Join Date: Aug 2008
Location: The Wet Coast, Kanuckistan.
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The Golden Egg - '93 Toyota Previa DX
90 day: 31.91 mpg (US)

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90 day: 57 mpg (US)

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It would help a bit but the work required makes it a "low on the list" kind of mod.

The gains would depend on the vehicle. A low profile tire/rim combo leaves a big gap there for airflow to catch on but a tall tire leaves less gap.
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