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Old 10-31-2011, 08:00 AM
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I know theres threads on this but what's everyones mpg, do you have a tuner, and what's your tire size? Trying to figure out if getting the programmer is worth it. Getting 16 mpg with 35s
Old 10-31-2011, 02:39 PM
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2005 SCrew 5.4 w/3.55 gears gets 14.5 average (mostly highway). On road trips I get 17.5. Bone stock.
Old 10-31-2011, 02:49 PM
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05 LXT 5.4 w/3.737 gears on average I get 15.6 and I am running 33s
My buddie has the same truck and he has 38s with 4.56 gears and he gets 16 on average
Old 10-31-2011, 02:53 PM
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I have the gryphon tuner from PHP and i get around 14 city. On highway if i don't go over 70 MPH i get around 21 (recently got 21.3 from Houston to Dallas )... driving aggressively between 75 and 85 MPH i get around 17-18. I have 31" tires. I also have the Gotts mod and a magnaflow SI/DO muffler which i think helps also.
Old 10-31-2011, 03:54 PM
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07 supercrew, 5.4, duals, no cats, gotts mod and Edge Evo on setting 3 with some of my own tweaking I'm getting anywhere between 14.5 to 15.5 with 35's and 3.55's and auto tranny. I do better IN town than on the highway, repeatedly, and I don't do over 70. Ran the Edge on setting 2 with some tweaks and was getting 15.5-16, I've been paying close attention to my mpg, just curious to see what different settings on the Evo do to it. Have a gryphon before the end of the year tho. Changing plugs and O2's in November, anxious to see what that does for mpg too.
Old 10-31-2011, 06:42 PM
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Well im running 35"s, 3.73 and like u said im getting about 16. I just don't know if that 16 is all the gryphon
Old 10-31-2011, 08:10 PM
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what do u have done to your truck i am running 35's with 3.73 and only getting 12.8 and only mod is true duals i need lighter foot i guess
Old 10-31-2011, 08:14 PM
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Originally Posted by FSU FX4
Well im running 35"s, 3.73 and like u said im getting about 16. I just don't know if that 16 is all the gryphon
Do u have custom tunes??? Bc I'm running 34's and I'm gonna be lucky to get 10mpg!! I've got the gryphon but no tunes yet I just ordered em today. I wasn't getting but 13-14 mpg before the 34's. This sucks I wanna know HTH y'all r doin that?!?!?!
Old 10-31-2011, 08:18 PM
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It also depends on how many stop and red lights are in your area cause just idling makes mileage go way down and if you accelerate fast then that can cause low MPG also. I try to not make my RPM's go above 2k unless i have to while accelerating, I dont have big tires but ive noticed those two things.
Old 10-31-2011, 08:27 PM
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Yeah that's what i've been doin to get 16


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