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Old 09-08-2012, 11:51 AM
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MossLake MossLake is offline
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Join Date: Aug 2009
Location: Carlyss, La
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Quote:
Originally Posted by jdm4x43732 View Post
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.
I think alot of the problems started with the 6.4 and newer. Maybe some 6.0s. Fuel system alot more sensitive.
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