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      12-21-2012, 12:24 PM   #23
Private First Class

Drives: 335d
Join Date: Dec 2012
Location: United States

Posts: 149
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Originally Posted by duramax View Post
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.
I've heard of doing this as well. Does this affect the DPF?

I have a friend with a Mazda RX-8 and he adds premix to his fuel as well.