H&S .31 *REDUCED FUEL MPG* - Ford Powerstroke Diesel Forum
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post #1 of 11 Old 04-27-2013, 07:38 PM Thread Starter
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H&S .31 *REDUCED FUEL MPG*

Since I downloaded the new .31 update my mileage has dropped drastically. I used to get just about 15mpg in the city, Now im @ 13.5mpg. Anyone else loose mpg? Also trucks feels slower & sluggish. Tranny is flawless.


'11 F350 6.7L FX4,
H&S Tuned & Deleted!
5" Flo-Pro
S&B Intake
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post #2 of 11 Old 04-27-2013, 08:18 PM
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I just put around 150 miles on the new .31 update. Turbo boost is down a little. Seems more controlled tho. No more 35 psi spikes. Havn't noticed mush change in mpg tho, seems about the same on mine. Truck is a little down on power tho. If it lets the turbo live longer im fine with that. Like you said, trans is perfect now.

2011 f250 ECSB 4x4
6.7l 3.31ELD
MiniMaxx Race Tuner
5in Flo-Pro No Muffler
Full Deletes

2004 F250 RCLB 4x4
6.0 3.73LS ZF6
4in No Muffler
Coolant Filter
Full EGR Delete
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post #3 of 11 Old 04-27-2013, 08:35 PM Thread Starter
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Quote:
Originally Posted by Derek T444E View Post
I just put around 150 miles on the new .31 update. Turbo boost is down a little. Seems more controlled tho. No more 35 psi spikes. Havn't noticed mush change in mpg tho, seems about the same on mine. Truck is a little down on power tho. If it lets the turbo live longer im fine with that. Like you said, trans is perfect now.
Give it some time. I have about 1,xxx miles on it. Trucks runs great. I am running it on "TOW/50hp". I will try "STREET/100hp" next fill up.


'11 F350 6.7L FX4,
H&S Tuned & Deleted!
5" Flo-Pro
S&B Intake
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post #4 of 11 Old 04-28-2013, 09:27 AM
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Mine is actually up a little bit, but that may be due to warmer weather. I run on performance unless the GN is hooked to the truck

Matt
2011 F350 6.7L CC/LB SRW 4x4 King Ranch White Tri Coat
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post #5 of 11 Old 04-28-2013, 02:24 PM
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I did .31 update and mine is sill using the old wording. Mild, wild, hot. Is everyone seein this or just depends I we have a race tuner or a street tuner with the unlock?


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2012 F250 KR, H&S mini max, full delete, Carli 2.5" pin top w/full replacement leafs, S&B intake, ADII and a camper shell!!!!
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post #6 of 11 Old 04-28-2013, 03:04 PM
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Sounds like you didn't update firmwear
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post #7 of 11 Old 04-28-2013, 06:14 PM
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How do I update firmware?


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2012 F250 KR, H&S mini max, full delete, Carli 2.5" pin top w/full replacement leafs, S&B intake, ADII and a camper shell!!!!
2013 Touareg TDi (mommas ride) She won't let me touch it.
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post #8 of 11 Old 04-28-2013, 06:16 PM
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Quote:
Originally Posted by 31 YNOT View Post
Mine is actually up a little bit, but that may be due to warmer weather. I run on performance unless the GN is hooked to the truck
Mines up also. Went from 17.4 to 18.1. I run on stock mostly and perf only on longer trips.


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leveled 2011 F250
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post #9 of 11 Old 04-28-2013, 11:02 PM
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How do I update firmware?


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scroll down to "update firmwear" on the main menu
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post #10 of 11 Old 04-29-2013, 06:39 AM Thread Starter
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I'll monitor my fuel burn. I haven't changed my driving style that much. Will keep an eye on it.


'11 F350 6.7L FX4,
H&S Tuned & Deleted!
5" Flo-Pro
S&B Intake
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