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Old 01-12-2018, 11:01 AM   #7 (permalink)
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Join Date: Jun 2012
Location: Mesa, AZ
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Chorizo - '00 Honda Civic HX, baby! :D
90 day: 40.43 mpg (US)

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I am sorry, I cannot find the information now, but as I recall, lean burn requires the engine be a certain temperature, and a certain RPM range.
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