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      12-20-2012, 09:54 PM   #21
duramax
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Drives: 2011 335D
Join Date: Sep 2011
Location: Kansas City, MO

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ULSDF is the main problem in my opinion and research. Their has been a lot of premature injector failure do to the lack of lubricity in the fuel. In my duramax, I add a half quart of 2 stroke motor oil every tank. Optilube XTP for the D every tank since new.