Anybody have an H&S xrt pro tune for the highest mpg's? - Ford Powerstroke Diesel Forum
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Old 09-02-2013, 01:27 PM
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Anybody have an H&S xrt pro tune for the highest mpg's?

I have a '10 6.4 with a H&S xrt pro tuner. Looking for the optimum tune for highest mpg's. You got a good tune for me?
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Old 09-04-2013, 06:44 PM
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Quote:
Originally Posted by blkrvrbart View Post
I have a '10 6.4 with a H&S xrt pro tuner. Looking for the optimum tune for highest mpg's. You got a good tune for me?
Anybody?
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Old 09-04-2013, 07:12 PM
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Hd300 set on performance setting.
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Old 09-05-2013, 05:44 AM
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I have been running HD300 on stock or tow setting and decided to try Performance a few days ago and im already up 1mpg on the lie o meter half way through a tank of fuel. So i will be filling up here soon and run through a whole tank on performance and i will see how much better it will be. Key is to run high power tune and keep your foot out of it(keep boost low)
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Old 09-05-2013, 01:28 PM
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Ah. Thanks. I'll give it a whirl.
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Old 09-08-2013, 07:19 PM
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Tried the HD300 tune on hot. Retaught the tranny. Snap this thing's a monster! It throws a P0703 code. I found the issue on here about why it sets that code and kills the cruise control. Any way to get around that? Thanks again.
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Old 09-09-2013, 05:21 AM
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Clear it with your xrt and see if it comes back. P0703 Brake Switch B Input code
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Old 09-10-2013, 03:39 PM
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Yup. It came back. Any ideas how to make it go away?
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