Thread: FORD Diesel Owners
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Old 09-08-2012, 11:42 AM
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jdm4x43732 jdm4x43732 is offline
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Join Date: Aug 2011
Location: Crowley, Louisiana
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I run Marvel Mystery Oil in my 7.3 Never have any problems other that change the filters every 20,000 miles or so. I try to buy all my fuel at the same truck stop if possible.
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