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      11-04-2012, 09:32 PM   #3
mike3000fl
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Drives: 06 330i
Join Date: Feb 2010
Location: Tampa

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DS shifts much higher than D.

D basically granny shifts at a lower RPM for a smoother shift and better fuel economy.

DS holds it in gear until close to redline.

The fuel injection program and ignition timing probably gets more aggressive in DS also. (dont know this for sure but it would make sense).