Thread: Oil Life Computer (reset to 100%?)
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Old 05-05-2007, 07:37 AM
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scarface78
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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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