1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

taller tires more MPG ??

Discussion in '4 Cylinder' started by mebedave, Jul 18, 2010.

  1. Jul 18, 2010 at 4:13 AM
    #1
    mebedave

    mebedave [OP] Member

    Joined:
    Jul 14, 2010
    Member:
    #40162
    Messages:
    21
    Gender:
    Male
    First Name:
    Dave
    Kansas
    Vehicle:
    basic truck
    I have a 2wd 4 cyl 2.4 L reg. cab. I need to buy new tires and I was thinking if I get a little taller tire I should get better mpg. That’s the same as putting in taller gears right?? I have the stock size tires on now p195/75r14. Has anyone ever played around with this. How tall can I go before tires rub?? I don't care if I get some power lost I don't tow with it and haul very liitle, I have a large truck for that kind of stuff. How would I adjust the speed-O ?
    I also need some suggestions on brand/model of tire. I having a hard time finding a tire with a good truck like tread for traction with 14"wheels. All I can find is passenger car tires. This truck is bad on traction I need all I can get.

    Thanks
     
  2. Jul 18, 2010 at 5:00 AM
    #2
    AvsFanTRD

    AvsFanTRD Oh gravity, thou art a heartless bitch!

    Joined:
    Aug 6, 2009
    Member:
    #20761
    Messages:
    3,259
    Gender:
    Male
    First Name:
    Brandon
    Wyoming
    Vehicle:
    2008 TRD Off Road Black
    rear suspension TSB, sockmonkey bed decals, weathertech floor liners, TRD seat covers, tailgate pop n lock, rear diff breather relocation, center console lock, Viper Alarm, extra D-rings in bed, 5100's on all 4 corners
    Taller tire = more weight = less mpg
     
  3. Jul 18, 2010 at 5:05 AM
    #3
    wnealw

    wnealw Active Member

    Joined:
    Feb 20, 2009
    Member:
    #13872
    Messages:
    33
    Gender:
    Male
    Fredericksburg,Va.
    Vehicle:
    08 tacoma 2wd
    scanguage,thrush turbo muffler wellded in.
    At first it seems that easy. taller tires better gas mpg. Problem weight of tires, trying accelerate to same as the smaller tires, drag on tires"most taller are going to be wider which both more tire on road and trying to cut threw the air.
    With that said I play the mileage game all time.Driving style will have to change
    It can be done. You will not see gains in mpg that match percent of tire size difference.
    Have not done this on my tacoma yet.
    But just up sized on my 07 Charger now 34 to 36 highway mpg
     
  4. Jul 18, 2010 at 4:16 PM
    #4
    mebedave

    mebedave [OP] Member

    Joined:
    Jul 14, 2010
    Member:
    #40162
    Messages:
    21
    Gender:
    Male
    First Name:
    Dave
    Kansas
    Vehicle:
    basic truck
    Well then, I'll stick with stock size. And try to control the lead foot
     
  5. Jul 18, 2010 at 4:19 PM
    #5
    Primersinmyshoe

    Primersinmyshoe Old Sheepdog

    Joined:
    Jun 13, 2010
    Member:
    #38855
    Messages:
    744
    Gender:
    Male
    St. Louis, MO
    Vehicle:
    gray, shiny, dependable
    Glock 36, spare mag
    When taller tires are put on is the speedometer gearing changed to read correctly?
     
  6. Jul 18, 2010 at 4:22 PM
    #6
    DevL

    DevL Well-Known Member

    Joined:
    Feb 23, 2010
    Member:
    #31952
    Messages:
    1,923
    Gender:
    Male
    No you do it electronically, not with gears like an old Jeep.
     
  7. Jul 18, 2010 at 4:23 PM
    #7
    Primersinmyshoe

    Primersinmyshoe Old Sheepdog

    Joined:
    Jun 13, 2010
    Member:
    #38855
    Messages:
    744
    Gender:
    Male
    St. Louis, MO
    Vehicle:
    gray, shiny, dependable
    Glock 36, spare mag
    Oh, OK. I'm old school and didn't know. Thanks.
     
  8. Jul 19, 2010 at 6:28 AM
    #8
    Tacoyota

    Tacoyota senile member

    Joined:
    Jul 22, 2009
    Member:
    #20028
    Messages:
    2,960
    Gender:
    Male
    North of Cali, South of Canada
    Vehicle:
    08 4wd
    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.
    You might get better mpg with a taller tire but dont count on it . If you go taller, make sure the tread width stays the same , keep the tire as an all season or highway tread (= low traction), and consider the tires pressure rating...some load range C can go to 50psi or so.
    You mention the lack of traction too , i dont think youll be able to go taller with better traction AND get better mpg , the added weight also effects rotional mass , the better traction tire will lose mpg. My opinion is to get 15" rims (decent used ones perhaps) and try a tire around 205/75 r15 , the reason is it wont be much wider , the added rim diameter gets you a 1" taller tire ,and more options for tires for that rim. tire model, go through Tire Racks list of tires and their sizes look for BFG all terrain for good offroad or rugged trail as a lighter AT for road use and some light offroad. Bridgestone has good models too , many many choices.
     
  9. Jul 19, 2010 at 6:43 AM
    #9
    Pugga

    Pugga Pasti-Dip Free 1983 - 2015... It was a good run

    Joined:
    Jun 18, 2010
    Member:
    #39131
    Messages:
    30,854
    Gender:
    Male
    First Name:
    Mike
    Massachusetts
    Vehicle:
    '13 Ford F-150 SCREW
    F-150 Mod
    The theory is correct but it depends on the vehicle. You'll see MPG gains by going to a taller tire on a vehicle that has more than enough cruising power but is reving too high at the desired cruising speed with the original set-up. In that case, adding a taller tire = lower engine speed = better MPG. I could be wrong but I doubt that applies to the 4-cyl Tacoma. Taller tires means you need more power to get them rolling and keep them rolling. The more stress you put on the engine, the worse your gas mileage is going to be. You have to find that happy compromise and, of course, driving style plays a huge roll also.

    good luck!
     
To Top