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miles per gallon

  1. 99-03 7.3L General Discussion
    Hi Everyone: A while ago I did some work on my 2001 F350 Super Duty with a 7.3L Powerstroke, auto trans, 4:11 axles, four wheel drive, crew cab and dual rear wheels. I have had the truck since it was new and it now has 117,000 miles on it. The fuel mileage has always been pretty crummy. I decide...
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