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  #16  
Old 06-19-2012, 10:46 AM
Pourboire Pourboire is offline
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Location: Scottsdale, AZ
 
Join Date: Jun 2012
Posts: 20
Mein Auto: 2013 X5 35i
The only reason they use nitrogen is because air has water in its makeup. The water will eventually effect the TPMS over a period of time. If nitrogen has been used within the tire before their is no reason for replacement of the monitors. Basically its you call regarding comfort level.
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