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      05-08-2009, 11:20 AM   #30
pull my finger to get your kinder® surprise
canucklion's Avatar

Drives: circles around you
Join Date: Dec 2005
Location: Toronto, Canada

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What Carve is saying (please correct me if I'm wrong) is that the sensor is not a very comprehensive sensor. It uses a pretty primitive method to guesstimate (educated guess) when one should change their oil. It is a guesstimate because it measures the conductivity of the oil and uses that value to plug into a formula (or algorithm) that BMW derived to determine the oil change interval.

The attached was screencapped from that BMW document you attached
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