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Power Strokes
6.0 Tech
Better MPGs without tuner?
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[QUOTE="OBS F350, post: 605336, member: 834"] Is this in town? My truck with 190/75's and no tune got 400 miles to half a tank on the highway last night coming back to town from Wisconsin. Cruise set at 75 most the way. I'm assuming you now have a new FICM installed? Your old one being on it's way out may have had something to do with it getting crap mileage. That's just a guess though. [/QUOTE]
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Better MPGs without tuner?
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