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255/70r17 MPG

Discussion in 'Wheels & Tires' started by rustyclay, Jan 18, 2009.

  1. Jan 18, 2009 at 11:05 PM
    #1
    rustyclay

    rustyclay [OP] New Member

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    I am getting ready for new tires and currently have stock 265/65r17 Bridgestone H/T. Want an A/T tire but do not want to lower MPGs. Anyone running 255/70r17? Thought this size should be a little better for MPG, since it is slightly narrower (less rolling resistance vs. 265) and slightly taller (slightly lower RPM) than the stock 265/70r17. I am very pleased w/ my MPG now (20 - 21 @ 60% city / 40% highway). I think this is very good for an '06 4x4 Tacoma and would like to keep it that way.
     
  2. Jan 18, 2009 at 11:21 PM
    #2
    Ridingontrd

    Ridingontrd Well-Known Member

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    Yes, there are some here running that size.Welcome to TW.:wave:
     
  3. Jan 18, 2009 at 11:37 PM
    #3
    genxer36

    genxer36 Lord of Tomfoolery

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    Welcome to TW!

    I doubt your mileage will be affected at all, for that small change.

    I'm running 265/50/20 with a v6 & get around 20mpg on the highway.
     
  4. Jan 18, 2009 at 11:49 PM
    #4
    jhodge83

    jhodge83 Any dog under 50# is a cat and cats are useless... Moderator

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    wat?
    i'm running 255/75/17, but they are heavy, but the lift and added weight dont help either. cant tell u about the mpg's
     
  5. Jan 19, 2009 at 2:47 PM
    #5
    rustyclay

    rustyclay [OP] New Member

    Joined:
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    '06 Tacoma TRD Sport
    I had a V6 2000 Prerunner and replaced the stock GY 265/75r15 tires with LT31x10.5 AT REVOs and I was never able to break 20MPG. Where as before, with the stock tires, I routinely got 20 - 21MPG with mixed (70% city / 30% highway) and 23 MPG highway. I have a '94 Jeep wrangler 4.0L with LT32x11.5 r15 C BFG TA KO and get 20 MPG highway. I don't think I could do better with another tire. It is disappointing to read about members that have gone to 265/70r17 and 265/76r16 BFG TA KOs and had a 1 - 2 MPG drop. Is there any member who has acheived the same mileage when upgrading to the 31.5" A/T tire? If so let me know, as I would love to get rid of the large "car" tires that came on my tacoma. Thanks.
     
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