12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

Mpg?

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Old May 15, 2009 | 11:02 AM
  #11  
stkdram55's Avatar
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if you guys have your trucks tuned just to blow smoke and some decent power then your not gonna get good mileage...back the wheel off a little bit and and slide the plate back and see what that gets ya...if your that worried about fuel mileage
 
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Old May 15, 2009 | 11:35 AM
  #12  
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ya im not really worried about fuel mileage... cuz i like to have alot of power. but i was just trying to see how i panned out compared to everyone else
 
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Old May 15, 2009 | 01:19 PM
  #13  
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yeah my 97 gets 12-15 in town and 22-25 on the inerstate but i always have it mashed to the floor
 
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Old May 15, 2009 | 04:30 PM
  #14  
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i used to get 27mpg around town and 40 on the highway then well had some problems with the truck and i did some upgrades now im at 14 to 16 mpg city and 19 to 21 highway but im always hotdoging it
 
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Old May 15, 2009 | 07:34 PM
  #15  
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Originally Posted by dodgeman129
i used to get 27mpg around town and 40 on the highway
No way you were gettin 40mpg.
 
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Old May 15, 2009 | 11:33 PM
  #16  
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he must be the same guy that was B.S.ing us when he "said" he had propain

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espetialy if he has an auto with 4.10 gears no way
 

Last edited by 94cummins12v; May 15, 2009 at 11:33 PM. Reason: Automerged Doublepost
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Old May 16, 2009 | 03:58 AM
  #17  
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40mpg
 
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Old May 16, 2009 | 01:37 PM
  #18  
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ya no possible way. cuz the best recorded mileage is 34mpg in the diesel power challenge last year and that was a newer truck running propane injection
 
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Old May 16, 2009 | 09:53 PM
  #19  
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no the record would have to be that truck running compressed natural gas in the diesel power mag i think he was at about 36-37 hiway
 
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Old May 17, 2009 | 08:03 PM
  #20  
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i got even better then that. 63 mpg was my best on a one way trip, but i found out my truck was starving for fuel so it made it get better milage

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it always ran like crap like something was holding it back
 

Last edited by dodgeman129; May 17, 2009 at 08:03 PM. Reason: Automerged Doublepost
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