Chevy/GMC 6.2L and 6.5L Discussion of Chevy and GMC Trucks with 6.2L and 6.5L Diesel Engines

chevy 6.5 fuel mileage

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Old Jan 27, 2011 | 08:20 PM
  #11  
palmer6.5td's Avatar
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Average 23, gotten as good as 27.
 
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Old Jan 27, 2011 | 09:05 PM
  #12  
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well Palmer you are doing good get that much mileage i have owen 5 these trucks and never get got that
 
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Old Feb 26, 2011 | 04:10 PM
  #13  
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Thats what everyone tells me. I find that I get 23 when driving about 110kms, seems to be where the motor likes to run and it never upshifts or downshifts on hills or climbs. If I don't run fuel conditioner or cetane boost I sure notice a difference.
 
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Old Feb 26, 2011 | 08:11 PM
  #14  
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Originally Posted by palmer6.5td
Average 23, gotten as good as 27.
I have to agree with crazy. I have had 4 of them and the best I have ever got was 19.5 and that was with the second biggest one I have had. The smallest 6.5 truck I had was a light 3/4ton 2wd and it got the worst at 14. Most of them seam to average around 18.
 
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Old Feb 27, 2011 | 05:32 PM
  #15  
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I'm getting 14-15 around town and last highway trip (not all interstate hwy) 19.8 w/no load on board. 94 6.5 td 2500 x-cab 4x4 longbed.
 
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Old Feb 28, 2011 | 05:52 PM
  #16  
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Well, for the non believers, I got 675km out of a tank on the highway and about a 100 km city driving yesterday. When I got home this morning I put in 85 litres. Thats around 24mpg.

---AutoMerged DoublePost---

That was driving around 105 to 110 km/h
 

Last edited by palmer6.5td; Feb 28, 2011 at 05:52 PM. Reason: Automerged Doublepost
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Old Feb 28, 2011 | 06:09 PM
  #17  
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I'm not a non believer if you say thats what you get I will take it at that. It's just incredibly good and you should probably sell the truck to me.
 
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Old Feb 28, 2011 | 10:07 PM
  #18  
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Anywhere from 13 to 18
 
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Old Feb 28, 2011 | 10:37 PM
  #19  
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Haha, yeah maybe I should do that. Only I've built it up to the truck I want and to do that to another one would hurt my bank account LOL
 
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Old May 24, 2012 | 04:02 PM
  #20  
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what about y'all dually folks... what mpg are y'all gettin?
 
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