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2007+ Expedition & Navigator 2007, 2008, 2009 and 2010 Ford Expedition and Lincoln Navigator

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Old 05-03-2007, 07:14 AM
rmeredit rmeredit is offline
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Oil Life Computer (reset to 100%?)

I changed the oil in my wife's 07 Exp (XLT 4x4) w/ Mobil1 5w20. I started it up & went into the computer to reset the oil life indicator. When I reset it, it only went to 90%. I expected 100%... I tried it a few more times & could only get it to go to 90%. Any ideas why? The book says it should go to 100%.

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-robert
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Old 05-05-2007, 07:37 AM
scarface78 scarface78 is offline
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Quote:
Originally Posted by rmeredit
I changed the oil in my wife's 07 Exp (XLT 4x4) w/ Mobil1 5w20. I started it up & went into the computer to reset the oil life indicator. When I reset it, it only went to 90%. I expected 100%... I tried it a few more times & could only get it to go to 90%. Any ideas why? The book says it should go to 100%.

Thoughts?

-robert
Maybe there was still some Burned out oil left on the engine walls which got mixed with new oil and sensor senses it?
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Old 05-05-2007, 03:40 PM
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screwy screwy is offline
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Navigate to the oil life display and reset it like you would after an oil change, once reset pushing the button again should de-increment the oil life by 10%, repeatedly pressing this will eventually get you cycled back around to 100%. This will set your default starting oil life, as I understand it 100% = 5000 mile oil changes, yours seems to be set on 4500 mile oil changes, 60% would be 3000 mile changes. There is no oil sensor, at least not one that measures the condition of the oil, instead the oil life is based on a calculation that takes mileage and time into account, it may also incorporate more factors but I canít be sure. Again, this is as I understand it.
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Old 05-05-2007, 03:40 PM
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