Thread: Bad MPG's!!
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Old 10-08-2012, 06:25 AM
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phlfly phlfly is offline
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Location: Leesburg, VA
 
Join Date: Mar 2009
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Mein Auto: 07' 550i
Try to use better gas, NOT from Costco. Better brands like Exxon, Shell has less ethanol in the gas. Any time I fueled mine with Costco gas I would get a check engine light that is meaning super small vapor leak, well I test a lot times and I guess it's too much ethanol there.
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