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Old 05-03-2012, 12:13 PM   #15 (permalink)
370ZilverZ
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Join Date: Dec 2011
Location: DFW, TX
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As it breaks in everything will get a bit looser in the motor and spin more freely which will increase your MPG.
I am always and when I see the questions about MPG from a sports car owner anyways. If that was a factor, why not just buy a prius?
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