02-06-2012, 08:58 AM
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MT = Doppler Shifting
Location: Lexington, KY / Pittsburgh, PA
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Join Date: Aug 2010
Posts: 798
Mein Auto: 2007 X3 (MT)
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Quote:
Originally Posted by Evlengr
... I still think whatever they treat the gas with during cold months and the temp itself eats about 1-3 mpg, but that could also be the added heater and ac/defog adjustments.
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Those things certainly all contribute. As well as the fuel mixture, which remains richer for a longer period of time after start-up (until the engine reaches operating temperature). It just takes a bit longer to warm everything up during the winter months...
I generally get ~18 mpg in pure city driving; ~22 mpg in mixed; and 25-27 mpg on the highway.
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X3 w/6-speed & Sport Package:
A sports sedan disguised as an SUV... |