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Old 06-27-2011, 07:17 PM
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Poor MPG???

I just bought my 2005 SD about 3 weeks ago. My dash is telling me that I'm getting 9.6 MPG... The truck is completely stock as far as I know, except for an Airaid cold air intake... Is this normal???
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Old 06-27-2011, 08:12 PM
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the dash is known for being wrong, have you hand calculated it?
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Old 06-27-2011, 08:13 PM
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No, not yet... I will do that next time I fill it up... Do you think putting 4" turbo back exhaust and an SCT tuner will help?
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Old 06-27-2011, 08:21 PM
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An exhaust and tuner help some, but you have to drive like you mean to conserve fuel.

I would get a good baseline mileage as you are now, and get back to us.

Stock I ran around 13-14 mpg combined, tuned I'm over 15 mpg with all my tunes. Your driving style will have the biggest effect on how effective the addition of a tuner will be.
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Old 06-27-2011, 08:54 PM
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I will definitely get base line numbers... I hate to say this, but I drive my truck conservatively, I leave my lead foot to my race car...
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Old 06-28-2011, 07:19 AM
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Quote:
Originally Posted by SynysterHD View Post
I will definitely get base line numbers... I hate to say this, but I drive my truck conservatively, I leave my lead foot to my race car...
Don't be too conservative or it will kill your turbo. You have to exercise the turbo regularly or the VGT vanes will stick requiring a tear down and cleaning. Make sure it see maximum boost regularly. This can be done without flogging it.
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Old 06-28-2011, 07:21 AM
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Quote:
Originally Posted by PGreenSVT View Post
Don't be too conservative or it will kill your turbo. You have to exercise the turbo regularly or the VGT vanes will stick requiring a tear down and cleaning. Make sure it see maximum boost regularly. This can be done without flogging it.
I haven't learned this technique just yet.
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Old 06-28-2011, 07:44 AM
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Originally Posted by Evil Eye View Post
I haven't learned this technique just yet.
I din't say he couldn't flog it. Actually though I very rarely ever need to go anywhere near full throttle and my truck sh1ts and gits.
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