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24 Valve 2nd Gen Dodge Cummins 98.5-02 Discussion of 24 Valve 5.9 Liter Dodge Cummins Diesels with VP44 Injection Pumps
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Fuel Mileage question

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Old Dec 5, 2009 | 03:24 PM
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01cummins13's Avatar
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Default Fuel Mileage question
Hey guys im only gettin 14-15.5 mpg, even when i have my adr set on mileage max. Just lookin to see what you guys think. I dont beat on her, or haul or tow anything.
 
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Old Dec 5, 2009 | 03:43 PM
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fuel pressure ,boost all normal? When did ya change the fuel filter last?
Are you sure you dont kick it every chance you get to hear the 5" exhaust talk?
 
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Old Dec 5, 2009 | 03:52 PM
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just changed the fuel filter last month. and yea the first few tanks i would just to hear iti but now im back to normal driving haha
 
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Old Dec 5, 2009 | 04:36 PM
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how many miles do ya have on the truck? any injector upgrades?
 
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Old Dec 5, 2009 | 04:44 PM
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143,000. no injector upgrades...YET haha. this summer i would like to upgrade but i need to put a clutch in first
 
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Old Dec 5, 2009 | 05:02 PM
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What gearing do you have?
 
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Old Dec 5, 2009 | 05:36 PM
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3.55 with a 5 spd tranny
 
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Old Dec 5, 2009 | 08:24 PM
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I have the same truck and the only time i get less than 18 mpg's is when air filter is dirty is it posible you have something resticting air flow
 
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Old Dec 5, 2009 | 09:19 PM
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x2 sawman that was my problem one time i run my quad addr on max milaege and i get no less than 20mpg
 
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Old Dec 5, 2009 | 09:22 PM
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well haha, i just cleaned the air filter the same time i changed the fuel filter. any ideas where i should start lookin? or could it be the intake setup i have?
 
Last edited by Dr. Evil; Dec 5, 2009 at 09:34 PM.
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