Fuel Economy - Ford Powerstroke Diesel Forum
6.4L Performance Parts Discussion What has or has not worked for you?

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Old 09-08-2009, 08:43 AM
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Fuel Economy

Oh know another fuel economy question but.... I just had a 6" Pro Comp Lift kit put on along with 37" Pro Comp Extreme AT's. At the same time I had a Pro Flow 4" dpf delete pipe with an SCT tuner set to performance tune. My fuel economy has dropped a bit. Is this normal?
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Old 09-08-2009, 08:47 AM
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Was the tuner installed previously or was it installed the same time as the lift and tires?
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Old 09-08-2009, 08:55 AM
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I had the tuner installed at the same time all the other work was done.
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Old 09-08-2009, 10:10 AM
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The lift and tires are going to hurt your fuel mileage, but I wouldn't think that adding a DPF delete and tuner would hurt it if they were done at the same time. Your mileage should have actually increased
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Old 09-08-2009, 10:20 AM
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My thoughts also. Is there a burn in period for the tuner with the transmission or engine?
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Old 09-08-2009, 10:22 AM
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Just drive it awhile, maybe you will start seeing some change
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Old 09-08-2009, 10:40 AM
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Will do and thanks for the help.
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