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7.3 fuel mileage advice
I just bought an 02 F-350 4x4 duallie 208k. It has no muffler, otherwise the truck is bone stock. Best mileage so far has been 11.5 mpg with fresh oil and filters. Does it sound like i have a problem ? Also, what are some real world mpg increases from programmers ? Any info is greatly appreciated.
Thanks, Justin
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