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Discussion in '4 Cylinder' started by joselito76, Mar 10, 2012.

  1. Mar 10, 2012 at 11:36 AM
    #1
    joselito76

    joselito76 [OP] Member

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    I just got a 2001 pre runner with 183000 miles in it . Its run great ,but compare with others in here the milage is horrible ,i get around 15 miles per gallon mostly highway and i drive 50 miles for work each way ,so I have few options.Replace the tires with smaller ones,get a used engine with less mileage,or do a head work get some extra horses that will move the tires with out sacrificing on gas . I read an article while back in 4x4 magazine that they bought a tacoma great running condition and they decide to do a head work and after that the truck was running a lot better.I had done everything possible tires hard as a rock all fluids are synthetic ,new spark plugs ,injectors cleaning, gas treatment and nothing.and my last resort sell the truck and get a new one with less mileage. any advice? thanks
     
  2. Mar 10, 2012 at 12:01 PM
    #2
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

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    FlimFlubberJAM
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    4.10 gears, sliders, and lots of buttons.
    Are you running larger tires on it?
     
  3. Mar 10, 2012 at 12:14 PM
    #3
    joselito76

    joselito76 [OP] Member

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    yes 265/75 r 16
     
  4. Mar 10, 2012 at 12:19 PM
    #4
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

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    FlimFlubberJAM
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    4.10 gears, sliders, and lots of buttons.
    Are you adding 3.4% to your ODO reading, then subtracting the gallons used?
     
  5. Mar 10, 2012 at 12:24 PM
    #5
    joselito76

    joselito76 [OP] Member

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    no i did not i try that thanks subtracting or dividing?
     
  6. Mar 10, 2012 at 12:50 PM
    #6
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

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    4.10 gears, sliders, and lots of buttons.
    Add 3.4% to the ODO reading, then divide the number of corrected miles, by the amount of fuel you are using.
     
  7. Mar 10, 2012 at 12:53 PM
    #7
    sean266

    sean266 Moderator Staff Member

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    Does that work for 285/75/16 as well? The adding 3.4%? I usually just add 1extra mpg to what fully says. So, if it says 16.5 I say 17.5?
     
  8. Mar 10, 2012 at 12:55 PM
    #8
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

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    4.10 gears, sliders, and lots of buttons.
    use the tire calculator to find out how much larger the current tire is, vs. the OEM one. 32's are around 3.4% (or so), while 33's are around 7.6% (or so) larger.
     
  9. Mar 10, 2012 at 1:13 PM
    #9
    joselito76

    joselito76 [OP] Member

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    i am looking at the tire calculator ,but i dont see where to get that percent.
     
  10. Mar 10, 2012 at 1:48 PM
    #10
    joselito76

    joselito76 [OP] Member

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    even with the 3.4 that only add me 10 miles from the odo reading .Still sucks on MPG.
     
  11. Mar 10, 2012 at 2:22 PM
    #11
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

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    4.10 gears, sliders, and lots of buttons.
    In the "Difference" columb, you will see the % [​IMG]
    from the online tire size calculator
     
  12. Mar 11, 2012 at 9:34 AM
    #12
    joselito76

    joselito76 [OP] Member

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    thanks
     
  13. Mar 12, 2012 at 10:15 PM
    #13
    joselito76

    joselito76 [OP] Member

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    well after numbers and keeping track of the milage and gas . I end up with 18.5 mpg mix driving about 60 % highway and 40% city.
     
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