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MPG difference bewtween rim sizes???

Discussion in '2nd Gen. Tacomas (2005-2015)' started by SCLOSKEY, Aug 12, 2010.

  1. Aug 12, 2010 at 2:34 PM
    #1
    SCLOSKEY

    SCLOSKEY [OP] Well-Known Member

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    shane
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    Looking to buy new tires and rims. Planning on getting a set of 285/70/17 or 285/70/16. What I want to know is how will the one inch rim difference effect my MPG??? Thinking about getting a set of Hankook dynapro ATM's. Also, I have 5100's all the way around my truck, with fronts set at 2.5 and a 1.5inch aal in the back. Any info helps, thanks
     
  2. Aug 12, 2010 at 4:10 PM
    #2
    Tacoyota

    Tacoyota senile member

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    North of Cali, South of Canada
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    4.56 gears, rear trutrac,DT header, 235/85r16 Duratracs, 2nd filter pulled, inter.wipers, Cruise control, Factory alum. whls/winter tires(2nd set), Afe pro Dry-S , Dumbo eared flaps cut down.
    arguement1: larger tire lower rpm = better mpg
    alternate arguement: engine works harder on larger tire size lower mpg.
    The only real proof would be to drive both and see. I think the 17" would be around .25mpg less if i had to give my best guess base on just a bit heavier tire and rim, i sure cant prove it though.
     
  3. Aug 12, 2010 at 4:11 PM
    #3
    skistoy

    skistoy Make mine a Double!

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    Rear Spring TSB,Billy 5100@.85,Bull bar,Nerfbar,Painted Grill,Painted Rims,Bed D-rings,Compustar Starter,Goodyear Duratrac's,Transmission TSB,Brake Overide
    You bought a truck, dont worry about it!
     
  4. Aug 12, 2010 at 4:12 PM
    #4
    bailerc

    bailerc Well-Known Member

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    i though it was mostly the mass that a larger tire has vs a smaller tire?
     
  5. Aug 12, 2010 at 4:16 PM
    #5
    senna

    senna Well-Known Member

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    It is not the rim size as much as the tire size, 285,s are going to cost you some mpg.
     
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