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      05-05-2009, 01:59 PM   #17
chaz58's Avatar
Drives: 328iT
Join Date: Oct 2007
Location: Detroit Burbs

Posts: 701
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Oh yeah - good point about warranty. I'm going to put the stock stuff back in if I have to take it to the dealer for trans repairs. Certainly something like Redline or Royal Purple isn't going to hurt your transmission though. This is probably a good maintenance task to do every 30,000 miles if you plan on keeping your car.

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