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Will lift and wider tires change mpg?

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Jeremy15, Dec 29, 2017.

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  1. Dec 29, 2017 at 3:37 PM
    #21
    geekhouse23

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    geekhouse23 The "Liftman" - @DrFunker

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    geekhouse23, Dec 29, 2017
    #21
    Shmellmopwho[QUOTED] likes this.
  2. Dec 29, 2017 at 3:47 PM
    #22
    Fitz235

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    Fitz235 Well-Known Member

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    I have a modest lift (2"), and avg 20-21 mpg in summer conditions.

    I also run P rated 265/70/17's, with stock Tundra wheels that weigh 27 lbs (weigh roughly 1 lb more than the factory wheels).
     
    Fitz235, Dec 29, 2017
    #22
  3. Dec 29, 2017 at 3:55 PM
    #23
    Shmellmopwho

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    Shmellmopwho Well-Known Member Vendor

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    Shmellmopwho, Dec 29, 2017
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    geekhouse23[QUOTED] and Armed in Utah like this.
  4. Dec 29, 2017 at 4:26 PM
    #24
    replica9000

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    replica9000 Das ist no bueno

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    At the moment, Torque is telling me I'm averaging 12mpgs. Probably the lowest in the ten years I've owned the truck. Don't know if it's the tires, "winter gas", or just age of the truck. I used to meet or exceed the EPA estimate on 305/60r18s. Now I can't come close with the same tire in 285's.
     
    replica9000, Dec 29, 2017
    #24
  5. Dec 30, 2017 at 11:13 AM
    #25
    PackCon

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    PackCon Well-Known Member

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    Just because the rims are wider, doesn't mean the tires are wider. 245 is actually very narrow. 265 is stock.


    Heavier wheels = lower MPGs and heavier tires = lower MPGs.

    A lift increases wind resistance which lowers MPGs as well.
     
    PackCon, Dec 30, 2017
    #25
  6. Dec 30, 2017 at 1:11 PM
    #26
    Marshall R

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    Marshall R Well-Known Member

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    Lots of variables, but you're not doing anything too radical so I'd not expect a huge difference, maybe 1-2 mpg. But generally wider tires with more aggressive tread creates more rolling resistance and hurts fuel mileage. Skinny tires with less aggressive tread does better. Lifting the truck will hurt aerodynamics. Larger diameter tires change the axle ratios and really mess with engine performance if tires are too large unless you regear.

    Basically the further you go from stock, the worse fuel mileage and engine performance you'll get
     
    Marshall R, Dec 30, 2017
    #26
  7. Dec 30, 2017 at 3:12 PM
    #27
    Skyway

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    Skyway Well-Known Member

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    :rofl: well stated....
     
    Skyway, Dec 30, 2017
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  8. Jan 16, 2018 at 9:20 AM
    #28
    Jeremy15

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    Jeremy15 [OP] Well-Known Member

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    How will my speedometer be affected if I go up to 265/75/16 from 245/60/16?
     
    Jeremy15, Jan 16, 2018
    #28
  9. Jan 16, 2018 at 9:25 AM
    #29
    jimmydean

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    jimmydean Well-Known Member

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    245/60/16? Thats not a standard tire size for a tacoma. Are you sure you don't mean 245/70/16? This site will help you figure out the changes
     
    jimmydean, Jan 16, 2018
    #29
  10. Jan 16, 2018 at 9:27 AM
    #30
    Jeremy15

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    Jeremy15 [OP] Well-Known Member

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    Yes 245/70/16 is what I meant.
     
    Jeremy15, Jan 16, 2018
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  11. Jan 16, 2018 at 9:29 AM
    #31
    jimmydean

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    jimmydean Well-Known Member

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    Your indicated speed will register a couple MPH slower than your actual speed. You'll probably lose a couple MPG.
     
    jimmydean, Jan 16, 2018
    #31
  12. Jan 16, 2018 at 10:16 AM
    #32
    Captainskidmark

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    Captainskidmark Well-Known Member

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    I recently took a road trip and was blown away i could watch my gas gauge plummet as I drove on the highwya @ 80mph...... I recently switched from 265/70-17 BFG AT KO (load range C) to 265/70-17 Cooper Discoverer STT Pros (load range E) and after seeing how much they killed my mileage I have already started shopping to go back to the BFGs.... anyone in the midwest interested in the stt pros haha?
     
    Captainskidmark, Jan 16, 2018
    #32
    DavesTaco68 likes this.
  13. Jan 16, 2018 at 10:27 AM
    #33
    redrock95

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    redrock95 Well-Known Member

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    I havent gotten 21 once in the entireity of the history of my 6spd 4.0.... tell me your wise ways. I live in utah as well and primarily drive highway.
     
    redrock95, Jan 16, 2018
    #33
  14. Jan 16, 2018 at 10:37 AM
    #34
    SnowroxKT

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    SnowroxKT Well-Known Member

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    Its all about those funs per gallon anyways. mpg is irrelevant
     
    SnowroxKT, Jan 16, 2018
    #34
  15. Jan 16, 2018 at 10:40 AM
    #35
    Jeremy15

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    Jeremy15 [OP] Well-Known Member

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    Okay thanks for the info
     
    Jeremy15, Jan 16, 2018
    #35
  16. Jan 16, 2018 at 10:43 AM
    #36
    REDdawn6

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    REDdawn6 Well-Known Member

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    I have a 2011 TRD offroad, after adding 285/75/16 tires, I'm 1mph off at 65mph.
     
    REDdawn6, Jan 16, 2018
    #36
  17. Jan 16, 2018 at 11:04 AM
    #37
    knottyrope

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    knottyrope Well-Known Member

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    I get about 19 MPG with my 35in tires and a 4 in lift on my 95 F350 4x4 CCLB 7.3 diesel
    14 MPG when towing 11.5 k
     
    knottyrope, Jan 16, 2018
    #37
  18. Jan 16, 2018 at 11:10 AM
    #38
    aficianado

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    aficianado Well-Known Member

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    yes. even going to an aggressive mud terrain will change MPG for the worse.
     
    aficianado, Jan 16, 2018
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  19. Jan 16, 2018 at 11:39 AM
    #39
    edm3rd

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    edm3rd Well-Known Member

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    245/70-16 is NOT a standard size either. 245/75-16 is.
     
    edm3rd, Jan 16, 2018
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  20. Jan 16, 2018 at 11:48 AM
    #40
    Jeremy15

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    Jeremy15 [OP] Well-Known Member

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    Okay
     
    Jeremy15, Jan 16, 2018
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