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Old 08-27-2012, 07:17 PM   #3 (permalink)
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The Q Sold - '02 Infiniti Q45 Sport
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You need to define 'smaller'

What you mean is narrower. Smaller means smaller diameter.

Smaller would prove for worse mileage.
Narrower would provide such a small gain that I would not concider the lose of handling and comfort.
Have you aired up the tires to 40-45psi?
MetroMPG: "Get the MPG gauge - it turns driving into a fuel & money saving game."

First: ScangaugeII

Second: Grille Block

Third: Full underbelly pan

Fourth: rear skirts and 30.4mpg on trip!
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