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      11-09-2012, 02:32 PM   #9
PSEE
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Drives: 2009 335d
Join Date: Dec 2010
Location: BMW, MA

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I have the same setup...

Maybe the colder air results in a mileage decrease? I thought the colder air was
'denser' and provided a better mixture (at least for gassers...) - what about
for oil burners?