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      01-15-2010, 07:17 AM   #41
TexAg06
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Drives: 2007 E90
Join Date: May 2009
Location: Houston, TX

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Quote:
Originally Posted by TrackRat View Post
Actually lifetime oil recommendations are prescribed by numerous sources for trans and diffs. including the powertrain suppliers to the car makers. These recommendations are always for "normal service" situations. HD applications, extreme temps, etc. can require earlier drain intervals. Just because you don't understand the details doesn't make the oil recommendations for normal service invalid.
please describe normal service to us peons.
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