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6.4L Performance Parts Discussion What has or has not worked for you?

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Old 04-09-2011, 11:29 AM
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Actual MPG, no BS...

I hand calculated my mileage today and made sure I got a full tank with no foaming. I have a minimaxx on "hot" (275 tune) 5'' Exhaust, S&B intake, 8'' lift, 38'' tires. My mileage was 14 mpg, mixed highway and city driving. Im pretty ok with the results for how big and heavy the truck is. I do not know what gears i have though.

I would assume if you are stock height and a tuner, you should be in the 17-18 mpg range, weight plays a huge factor so added bumpers, shells, lights, steps, etc... with diminish mpg's.

Last edited by rdwngs444; 04-09-2011 at 11:50 AM.
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Old 04-09-2011, 03:55 PM
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2008 DRW, 4.10's, Black Maxx set on wild, 5" DP back, no intake yet. 21 mpg all highway, 19 mixed.
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Old 04-09-2011, 05:36 PM
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2010, 3.55 gears, all stock getting 14.5mpg mixed highway and city with mini maxx, 5" flo pro, S&B intake.
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Old 04-09-2011, 06:18 PM
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I'm about to get one but I was going to just go 4'' with muffler. Is there a huge diff in going to the 5''. BTW, just to give you a stock mileage, my truck is a 2008 early job 1 cc sb 4x4 3.73's mostly city avg mileage is 10.2 via fuelly.
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Old 04-09-2011, 06:27 PM
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Quote:
Originally Posted by shell_guy View Post
2008 DRW, 4.10's, Black Maxx set on wild, 5" DP back, no intake yet. 21 mpg all highway, 19 mixed.
with 4.10's thats hard to believe. i have the same setup and get 14mpg. my dash says 25mpg though
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Old 04-09-2011, 07:44 PM
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09 CCSB 3.73 spartan 250/210 usually. leveling kit and 35.5" tires I average 15mpg mixed driving with a semi heavy foot.
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Old 04-10-2011, 12:58 AM
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Quote:
Originally Posted by shell_guy View Post
2008 DRW, 4.10's, Black Maxx set on wild, 5" DP back, no intake yet. 21 mpg all highway, 19 mixed.
lies lies lies..... averaging 17mpg but I do a TON of Hwy driving
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Old 04-10-2011, 02:15 AM
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Quote:
Originally Posted by 09monster View Post
lies lies lies..... averaging 17mpg but I do a TON of Hwy driving


Sig says it all.
Usually get around 15 mixed driving, 70/30 intown/highway.
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Old 04-10-2011, 08:01 AM
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19 hwy, 12 city, set to HOT tune, truck is in defuel mode until coolant hits 140. I live pretty close to work(3miles) so my mileage is even worse in town since truck just gets warmed up by the time I get to work. Ive only filled up twice so far with tuner and mods.
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Old 04-10-2011, 10:17 AM
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Quote:
Originally Posted by shell_guy View Post
2008 DRW, 4.10's, Black Maxx set on wild, 5" DP back, no intake yet. 21 mpg all highway, 19 mixed.
Quote:
Originally Posted by suban View Post
with 4.10's thats hard to believe. i have the same setup and get 14mpg. my dash says 25mpg though

I can see 19 maybe with 4.10's, but not in the 20's. I can see the 19+ with a SRW though cruising keeping the RPM's below 2000.
I have Innovative and I can get almost 17 in my truck, hand calc'ed on the X-Street. Have not tried the X-Race.
450 with 4.88's. That is keeping the cruise on 60-65, not over. Under would be better but 60-65 is bad enough.
In town though, I say that it is from the lie-o-meter, unless his town has no stops and can cruise right at the lock up in OD.
Or he has and oddball efficient truck.
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