Why is my rig getting 8MPG !?? - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 50 (permalink) Old 02-08-2011, 02:00 AM Thread Starter
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Why is my rig getting 8MPG !??

i dont know where too look first. foot through the floor or driving mrs. daisy MPG doesnt change. about 8.5-9 . any ideas would help. i dont know a ton about diesels yet, this being my first. so thats why i dont even know where to start looking. as far as mods go, bone stock, egdge evo, 4'' cat back no muffler. napa filter. its an auto with a 6'' lift 35's thanks alot!
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post #2 of 50 (permalink) Old 02-08-2011, 02:12 AM
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Re: Why is my rig getting 8MPG !??

Are you idling a lot?

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post #3 of 50 (permalink) Old 02-08-2011, 02:17 AM
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Re: Why is my rig getting 8MPG !??

7.3 or 6.0?

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post #4 of 50 (permalink) Old 02-08-2011, 02:22 AM
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Re: Why is my rig getting 8MPG !??

I think he has an 02 7.3

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post #5 of 50 (permalink) Old 02-08-2011, 02:25 AM Thread Starter
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Re: Why is my rig getting 8MPG !??

its a 7.3, i idle it in the morning when its cold out. the high idle SCREAMS! sounds like is wasting alot of fuel to me
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post #6 of 50 (permalink) Old 02-08-2011, 02:29 AM Thread Starter
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Re: Why is my rig getting 8MPG !??

207k on the clock
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post #7 of 50 (permalink) Old 02-08-2011, 02:29 AM
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Re: Why is my rig getting 8MPG !??

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Originally Posted by brp7282 View Post
its a 7.3, i idle it in the morning when its cold out. the high idle SCREAMS! sounds like is wasting alot of fuel to me
Yeah, I get about 10-12 mpg in the winter.. But I am running 4wd more and letting it idle more often. Summer time I get 14-16 mpg. 8-9 sounds low to me though for sure.

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post #8 of 50 (permalink) Old 02-08-2011, 02:31 AM
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Re: Why is my rig getting 8MPG !??

I have 285s on now, and get 1 mpg better than when I was running 315s. That 1 mpg adds up. Winter sucks.

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post #9 of 50 (permalink) Old 02-08-2011, 02:32 AM
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Re: Why is my rig getting 8MPG !??

How long are you letting it idle? And that scream is normal. Just the back pressure valve closing to help warm it up quicker. You might have leaky uppipes to.

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post #10 of 50 (permalink) Old 02-08-2011, 02:34 AM
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Re: Why is my rig getting 8MPG !??

How far do you drive it? like to work in the am and on the way home, or do you drive it all day?


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