Quote:
Originally Posted by ard
Say, I wonder if there IS some method to BMWs madness that ONLY BMW oil be used...so the sensor has a known baseline? 
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Oil properties may affect accuracy of the algorithms, but he designer would have to accommodate different types of oils. It does highlight the importance of resetting the service indicator when the oil is changed so the system knows to take a starting point sample for the baseline.
Back to the original topic, this is also why it would be important to reset the adaptations when changing the transfer case fluid, even if the flag hasn't been tripped for oil degradation. While the sensing technology is different, it seems reasonable to me to let the system function as designed.
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2007 X3 3.0si, 6 MT, Premium, White
Retired:
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