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mpg's dropped after 15k oil change

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Old 11-05-2008, 04:48 PM
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Default mpg's dropped after 15k oil change
I used to average 23 Mpg's. After my oil change I average only 20, and yes, I checked the oil level and it's fine. Any Ideas?
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Old 11-05-2008, 06:45 PM
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you bought new heavier shoes.
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Old 11-06-2008, 05:49 AM
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LOL
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Old 11-06-2008, 07:10 AM
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Tire pressure?
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Old 11-06-2008, 07:34 AM
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That's a good one. I run my tires hard, and service sometime deflates them to spec on me.
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Old 11-06-2008, 07:36 AM
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Pressure is the same. Maybe it's winter gas.??
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Old 11-06-2008, 09:07 AM
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Default Noticed the same thing last month...
after my 15K, car also seems to be lagging a bit more...
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Old 11-06-2008, 11:35 AM
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timing would be about right I guess, though I've never noticed a drop on the V6.
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Old 11-06-2008, 03:23 PM
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Default TIRE PRESSURE, Dude! ... or Could be your Gas station
Get it inflated to 39 - 40 and I suddenly got 26.5 MPG on my Avant, going 520 miles on a full gas of tank before refueling.

Another thing ... your gas station. After I switched from Exxon to Citgo ... it was a big improvement.
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Old 11-07-2008, 02:11 PM
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Try checking your air filter. That thing needs to be clean for optimum MPG.
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