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      05-10-2012, 05:45 PM   #28
phazen23
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Drives: 335xi
Join Date: Aug 2011
Location: washington state

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Quote:
Originally Posted by woptang22 View Post
So I should do a log of third gear switching into fourth gear? What would that show that just a third gear run wouldnt show?
Correct. I'm afraid I don't know the answer to your question, it's just what I've read. My guess is that a single gear (especially a lower one) doesn't put a high load on the engine for very long. getting 2 upper gears worth probably presents more opportunity for a timing correction or some other issue. I'm sure some useful information can be gathered from the gear change itself as well
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