5.9 Liter CR Dodge Cummins 03-07 Discussion of 5.9 Liter Dodge Cummins Diesels with Common Rail Injection

Fuel Mileage Wasn't Bad

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Old Dec 2, 2009 | 11:00 AM
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Default Fuel Mileage Wasn't Bad

Running a rokk, 2 stoke, cetane boost, and running 70-75 got me just under 17. 453 miles @ 27 gal. I remember getting 450 miles on a half tank.
 
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Old Dec 2, 2009 | 08:59 PM
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Is that town and freeway? Don't you have a smarty? With mods I'm getting 21mpg town and freeway. freeway only "25mpg" at 68mph. I run regular 2 stroke oil at 1 ounce per gallon ratio.
Smarty on 7 60%.
 
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Old Dec 2, 2009 | 09:01 PM
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Only "major" parts on it are an ATS converter and a Fluidampr.
 
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Old Dec 2, 2009 | 09:05 PM
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Dude please try a smarty you will be amazed! I was! Not just for power but all around drivability.
 
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Old Dec 2, 2009 | 09:06 PM
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I know what the SR can do, that's why I got the ATS converter on it.

I also had a JR, but after $4000 in injector work, I had to sell it. So it was hard to see if it helped the mileage.
 
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Old Dec 2, 2009 | 11:21 PM
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What happened? Did you run a pressure box with it? Seems with the smarty my pressure is real low unill I floor it!
 
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Old Dec 3, 2009 | 04:46 AM
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No pressure box, just "idle too much".
 
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