Thread: DEF
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      09-16-2011, 10:29 AM   #5
Socom
BMWCCA since '03
 
Drives: 2015 435i
Join Date: May 2005
Location: Atl.

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DEF does not store well so its not advisable to "stock up" on it. The DEF in your tanks should last atleast 1 oil change interval and as you know it is covered under maintenance.
Socom is offline   United_States
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