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Author Topic: '99 HD MPG FYI  (Read 2228 times)

RPF207

  • 3500HD Driver
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  • Posts: 249
  • Age: 31
  • Location: Maine
'99 HD MPG FYI
« on: September 16, 2015, 09:25:27 AM »
Figured I'd post some hopefully useful info for anyone wondering about the fuel economy for an HD with a 6.5 5 speed. Mine is 45,000 original miles 1999 Chevy HD 135.5" RC 6.5 5 speed with 5.13's out back. Lately I've been getting 16 MPG around town and 15 MPG highway. MAX highway speed is 70 for me. You could push it more but it starts singing a different tune after 70 so I keep it at that. These MPG's are for my truck unloaded. It's just a 9.5' flat bed that doesn't weigh much. Hope this is useful!
« Last Edit: December 20, 2015, 09:14:58 AM by RPF207 »
1999 chevy HD 4x4 135.5" 6.5 nv4500 bw4470 Dana 70 HP 10 lug front

Due to recent budget cuts the light at the end of the tunnel has been turned off

ED-NY

  • Administrator
  • 3500HD Hero
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  • Age: 69
  • Location: Champlain, NY
Re: '99 HD MPG FYI
« Reply #1 on: September 16, 2015, 08:05:44 PM »
That's helpful info (nice MPG)...wonder how a gas engine would compare. Suspect loaded and unloaded would be a major factor.

KODIAK

  • 3500HD Hero
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  • Posts: 407
  • Location: Brandon Fl
Re: '99 HD MPG FYI
« Reply #2 on: September 16, 2015, 10:00:13 PM »
My 97 gets 14mpg with a 11ft service body with tools in it  Its a 6.5 auto with 463 gears

GM Guy

  • 3500HD Driver
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  • Age: 29
  • Location: NW. KS to S. ID
  • manual transmission 2wd enthusiast
Re: '99 HD MPG FYI
« Reply #3 on: December 20, 2015, 03:25:07 AM »
a 6.5L 5speed 2wd can flat get some MPG, and that is why I love them. :) RPF207, got any pics of the beast?

RPF207

  • 3500HD Driver
  • ****
  • Posts: 249
  • Age: 31
  • Location: Maine
Re: '99 HD MPG FYI
« Reply #4 on: December 22, 2015, 08:18:05 PM »
Yeah, but it's half apart right now getting a front axle. I'll post some when it's done
1999 chevy HD 4x4 135.5" 6.5 nv4500 bw4470 Dana 70 HP 10 lug front

Due to recent budget cuts the light at the end of the tunnel has been turned off

 


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