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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2000 5.9 MPG!!

Old Feb 23, 2011 | 09:27 PM
  #1  
coyotekiller3's Avatar
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Default 2000 5.9 MPG!!

K once again i got a new truck its a 2000 with a standard 5 speed truck has 51 thousand miles has air intake ,4 inch exhaust , and juice with attitude,3:55 gears with stock tires and wheels. I only Average 14 16 around town and 20 on the freeway and thats trying really hard. I had a 99 with j/a, raptor lift pump, injectors, exhaust , and 35 inch tires i averaged 19-21 around town and 26 on the freeway? should there be that much difference? Do i need to do injectors and lift pump and all that stuff or do standards just get worse gas mileage im lost. I figured my new grandpa truck would get better. any help would be great so start asking questions
 
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Old Feb 23, 2011 | 11:37 PM
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i would do the lift pump regardless to help save the vp44 for the future. i have a manual and i get 17-18 city and 19-20 highway
 
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Old Feb 24, 2011 | 06:33 AM
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id definately buy a lift pump. holley pumps are great and not that expensive either. id also be looking into mpg tuner. there are alot of em out there and most arent too high
 
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Old Feb 24, 2011 | 10:22 AM
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Without a doubt get a lift pump to save your VP44... A set of injectors will help out a little with MPGs also.
 
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Old Feb 24, 2011 | 10:50 AM
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I have a question cause im a lil confused. I have a 02 cummins and they did the upgrade and put the lift pump in the tank. Should I still get a FASS system and just added it in line?
 
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Old Feb 24, 2011 | 11:02 AM
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Get a raptor, airdog or a fass no matter what. Another difference could be if one was a 2wd or 4wd.
 
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Old Feb 24, 2011 | 11:30 AM
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your going to have to do some tank modification to install any aftermarket lift pump since your was converted to the in tank style
 
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Old Feb 24, 2011 | 12:37 PM
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Well thanks for the help guys sounds like ill be buying another lift pump and small set of injectors
 
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Old Feb 24, 2011 | 01:50 PM
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Originally Posted by cummin_un_glued
your going to have to do some tank modification to install any aftermarket lift pump since your was converted to the in tank style
What all does it consist of Un Glued?
 
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Old Feb 25, 2011 | 08:41 PM
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Originally Posted by KillStroker
What all does it consist of Un Glued?
u can either get a stock pickup from a junkyard or just get a draw straw from fass or air dog
 
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