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1999 to 2003 7.3L Power Stroke Diesel
7.3L Power Stroke Diesel equipped Super Duty and Excursion.


 
 
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Old Tue, May 8th, 2012, 12:16 AM
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ticopowell ticopowell is offline
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I get between 15 and 17 mpg's with my tunes, I haven't driven enough to narrow it down any further. I usually try and use the 80hp or the 120hp tunes for most of my driving, and it seems like I get slightly better with the 120 as long as I keep my foot out of it. I have stock, 40, 65 w/whisper, 80 w/whisper, 120, and a no start.
I think your tunes will work fine for you, but I think getting a 120hp could help as long as you drive it nice. I generally think that to get more power I need more efficiency, so that way I get more hp per squirt of gas so I can use less gas for the same power. by this logic the 120hp tune with non-aggressive driving would get you the best gas mileage.
This may be completely wrong, and I may be thinking of gas engines, but it so far has worked for my and my driving.
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