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Anyone Getting better MPG's in the city-6 Speed Manual

Discussion in 'Technical Chat' started by dizzle01333246, May 2, 2013.

  1. May 2, 2013 at 6:10 AM
    #1
    dizzle01333246

    dizzle01333246 [OP] Well-Known Member

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    I get better MPG's in the city with my 6 speed manual V6 (around 18-19) than I do on the highway (16-17). Anyone else experience this? Its probably because I keep my rpms really low in the city.
     
  2. May 2, 2013 at 6:37 PM
    #2
    jassco

    jassco Well-Known Member

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    My guess is your rpms are higher on the highway causing more fuel burn. The 6th gear is a joke in these trucks and does not drop the rpm enough to be a true overdrive gear. If you drive over 65 it really plummets.
     
  3. May 3, 2013 at 6:01 AM
    #3
    dizzle01333246

    dizzle01333246 [OP] Well-Known Member

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    Yeah thats what I thought. Im not complaining at all since most of the driving I do is on the highway.
     
  4. May 3, 2013 at 6:04 AM
    #4
    dizzle01333246

    dizzle01333246 [OP] Well-Known Member

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    correct city
     
  5. May 3, 2013 at 6:05 AM
    #5
    jassco

    jassco Well-Known Member

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    5100 set to .85 w/ rear TSB, 2012 Rear-view Mirror, Grillecraft, Team Trails FJ Wheels, TPMS canister, Rear headrest delete, Rear console delete, Valley Hitch, Frame undercoat, $2.99 Tailgate hose clamp lock, Avid light bar, 4x4 lighted switch ala Biceman.
    5th on the 4 cyl does this to me too, but it's for a reason. The 6 has the power to deal with a lower gearing so I'm not sure why it was made this way.
     
  6. May 4, 2013 at 7:26 AM
    #6
    iroh

    iroh Well-Known Member

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    My six speed definitely got good mileage in town. It was as happy as a clam to be in 6th gear at 35 mph spinning 1200 rpm; on flat ground the calibrated ultragauge would read 30-35 inst mpg. The hardcore drop over 60 mph was a factor in my decision to sell it. I was annoyed with avoiding freeways.

    The 4 cyl does ok in town but doesn't like to lug along like the 6 did. 5th gear is pretty much 40 mph on up only, but I suppose I can live with that, as 35mph 4th and 45 mph 5th are both in the neighborhood of 35-40 inst mpg.
     
  7. May 4, 2013 at 7:36 AM
    #7
    Rupp1

    Rupp1 Well-Known Member

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    I don't know if I would call my driving City, but I've been hitting 18.2 to 18.3 in my 2010 6 speed in mostly suburban driving.
     
  8. Mar 26, 2015 at 9:37 AM
    #8
    gray223

    gray223 Well-Known Member

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    Front and rear plate bumper, monstaliner pyroclastic, icon 2.5" CO, 13" icon 2.0 outboard frame in rear, 255/85/16 st maxx, SCS F-5 GMG 3.5bs
    Would having a larger diameter tire drop the rpms down low enough so your not running so high in 6th? Like running a 255/85/16?
     
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