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  #1  
Old 04-06-2011, 01:49 AM
XsuperdutyX
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How many mpg should a 6.4 diesel get

I have a 08 6.4 and it's gets around 10 to 12 mpg around town is that good? I thought I should be getting around 16 to 18 thanks
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  #2  
Old 04-06-2011, 01:54 AM
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Re: How many mpg should a 6.4 diesel get

I have a 2010 F350 and I was getting about 14 in town and 18 on the highway. Just installed tuning so not sure what it is now.

I know the job 1 08's did not get the best mileage.
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Old 04-06-2011, 02:04 AM
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Re: How many mpg should a 6.4 diesel get

Your about right if your stock
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Old 04-06-2011, 02:19 AM
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Re: How many mpg should a 6.4 diesel get

I got 12 stock in a job 1.
Now I get 19 with DPF delete and KEM 210. My dash said 44mpg
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Old 04-06-2011, 04:03 AM
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Re: How many mpg should a 6.4 diesel get

12.9 avg here
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Old 04-06-2011, 05:11 AM
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Re: How many mpg should a 6.4 diesel get

I dont have my fuel book with me, but 10-12 is about right for stock.
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Old 04-06-2011, 06:55 PM
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Re: How many mpg should a 6.4 diesel get

i got about 13.5 stock no towing was afraid to check it towing lol.
tuned i get in where from 15.5 to 17 city driven, the only trup i took was up to tennesse and it got about 17 but was moving on pretty good.
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Old 04-06-2011, 07:07 PM
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Re: How many mpg should a 6.4 diesel get

RPM's kill the 6.4 on mileage. 1600 seems to be the best mileage, GV OD would probably help any of us who go 75+mph.
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Old 04-07-2011, 12:46 AM
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Re: How many mpg should a 6.4 diesel get

i get 14 tuned. But I am on 35s and typically short trips
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Old 04-07-2011, 01:04 AM
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Re: How many mpg should a 6.4 diesel get

Hand calculated in the summer the best i got was 24mpg at 70mph. from 8 mpg stock to tuned with the spartan 250 tune.
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