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Old Oct 31, 2008 | 07:12 AM
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Default MPG dropping

I have a 2004 Audi A4 Cab and I have been averaging about 26-27 mpg. The last 2 months I have been averaging about 22 mpg. Nothing has changed it is the same drive to work everyday at the same speed. The tire pressure is good. What else could cause this drop in mpg?
Old Oct 31, 2008 | 09:31 AM
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Default Re: MPG dropping

Originally Posted by ThomasOlsen
I have a 2004 Audi A4 Cab and I have been averaging about 26-27 mpg. The last 2 months I have been averaging about 22 mpg. Nothing has changed it is the same drive to work everyday at the same speed. The tire pressure is good. What else could cause this drop in mpg?


Well the temps have been dropping..that's a start...I have noticed 50 km per tank loss already on fill ups
Old Nov 2, 2008 | 08:50 AM
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Default Re: MPG dropping

Lower temps definitely do reduce milage but given the OP is in NC that is not likely it.
Have the gas stations in your area recently added ethanol? that also results in a drop. Can account for about a 10% drop in milage.
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