Thread: Considering an E85 Experiment
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Old 06-12-2012, 05:01 PM   #44 (permalink)
Allch Chcar
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Join Date: Jan 2008
Location: North Coast, California
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Cordelia - '15 Mazda Mazda3 i Sport
90 day: 37.83 mpg (US)
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The black sludge is normal after switching from Gasoline to E85. It goes away after a couple hundred miles and requires a fuel filter change.
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