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      01-14-2013, 12:16 PM   #2
Pete Schweaty
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Drives: 2007 335i E90
Join Date: Jun 2011
Location: MD

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http://www.tirerack.com/tires/tirete....jsp?techid=44

They alarm when the pressure in the tire drops more than 25% of the recommended cold tire inflation pressure. So the way I read it, if you over inflate the tire (dangerous, and not recommended) you will have some cushion. I wouldn't do it though, you will lose gas mileage, tread life, and the handling of the vehicle will be negatively effected.
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