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Old 06-14-2011, 06:49 PM
Stangshcky12 Stangshcky12 is offline
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Join Date: Feb 2011
Location: Pittsburgh
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10 miles and your oil will be black. I too recomend the H&S mini maxx. There software is the most update and they have great customer service!
You see that big of a decrease in fuel mileage because cummins use diesel fuel as their catalyst instead of the UREA fluid like ford and chevy
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