Thread: Gas Mileage Issues on my 04 X5 4.4L
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  #16  
Old 11-16-2009, 02:23 PM
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amacman amacman is offline
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the air filter will have been changed
I changed my air filter at 50000 miles because it was black with dust and then the engine used more fuel because it was getting more air through the clean filter .
just my 2 cents .
Last edited by amacman; 11-16-2009 at 02:31 PM.
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