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255/85/16 vs 265/75/15 realistic mpgs?

Discussion in 'Wheels & Tires' started by SR54x4, May 25, 2011.

  1. May 25, 2011 at 6:35 PM
    #1
    SR54x4

    SR54x4 [OP] Well-Known Member

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    Mark
    Hudson Valley
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    2008 4x4 TRD SR5 Tundra
    Magnaflow 12588, TSC lo-pro extra deep toolbox, step bars and bull bar
    been reading some threads on "pizza cutter" style tires, 255/85/15 or 255/80/17. right now i have 265/75/16 duratracs and since i put them on my mpg's on my 2.7 4x4 went from 21-22 mpgs down to 18-19 mpgs. one of the claimed benefits of the 255's is better mpgs because there is said less rolling resistance. anyone running 255/85/16 or 255/80/17 that can chime in?
    just wondering if i made the switch if i could get back up to the low 20's for mpgs again.
     
  2. May 25, 2011 at 6:37 PM
    #2
    steve o 77

    steve o 77 braaap

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    In a corn field, OH
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    I was getting 18 max with my 255's, now I can get 21 if I try with my 265's.
     
  3. May 25, 2011 at 6:43 PM
    #3
    especk

    especk Nothin' Special

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    3" OME lift with 885 coils on nitrocharger 90000 shocks with 5mm trim packer on driver's side, TC UCAs, Rear OME Dakar leafs with nitrocharger shocks, All-pro U-bolt flip kit and 3* Toytec shims, extended rear brakelines, 16" Raceline Rockcrusher 887 wheels with 3.6" backspacking, BFG KM2 305/70/16 tires, Doug Thorley header, Doug Thorley catback exhaust, Volant CAI with ram air, Weathertech floor mats, Kicker 12" sub, Kenwood 500W RMS amp, Relentless Fab front and rear bumpers, 4.88 gears, custom flatbed with swing out tire carrier
    even though the 255s are narrower which has less rolling resistance, they are also taller which takes more energy to turn them.

    thats all i got
     
  4. May 25, 2011 at 6:45 PM
    #4
    SR54x4

    SR54x4 [OP] Well-Known Member

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    Mark
    Hudson Valley
    Vehicle:
    2008 4x4 TRD SR5 Tundra
    Magnaflow 12588, TSC lo-pro extra deep toolbox, step bars and bull bar
    thats what my thought was. the 255s work out to be about a 33" tire. im thinking the better mpg statements is the return better mpgs than a standard width 33" tire due.
     
  5. May 25, 2011 at 6:45 PM
    #5
    steve o 77

    steve o 77 braaap

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    In a corn field, OH
    Vehicle:
    2001 4x4 5Spd Xtra Cab V6
    205k+ miles, 265/75/16 BFG A/T's, OME 881's, Wheelers 5 leaf pack, 5100's, Home Made Sliders
    yup, the 255/85/16 is about 33.3" tall while the 265/75/16 is about 31.5"tall.
     
  6. May 25, 2011 at 6:47 PM
    #6
    especk

    especk Nothin' Special

    Joined:
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    Redding, CA
    Vehicle:
    2010 Tacoma Reg Cab 4x4
    3" OME lift with 885 coils on nitrocharger 90000 shocks with 5mm trim packer on driver's side, TC UCAs, Rear OME Dakar leafs with nitrocharger shocks, All-pro U-bolt flip kit and 3* Toytec shims, extended rear brakelines, 16" Raceline Rockcrusher 887 wheels with 3.6" backspacking, BFG KM2 305/70/16 tires, Doug Thorley header, Doug Thorley catback exhaust, Volant CAI with ram air, Weathertech floor mats, Kicker 12" sub, Kenwood 500W RMS amp, Relentless Fab front and rear bumpers, 4.88 gears, custom flatbed with swing out tire carrier
    yup thats probably where its coming from
     
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