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Fuel Mileage After Larger Tires - 3rd Gen

Discussion in '3rd Gen Tundras (2022+)' started by Rwaters, Jan 27, 2022.

  1. Jan 17, 2023 at 3:58 PM
    #91
    AW818

    AW818 New Member

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    Westcott lift, 35 BFG KO2, Race Relation 17inch wheels
    I've got 35x12.5-17 BFG KO2 on Race Relation wheels. Been averaging a little below 15MPG and that is after accounting for the larger tire size in the calculations. Recently did some highway driving at 55MPH and got 17 MPG, which was good to see because any stop and go city driving I am around 12MPG. I drive super conservatively so I was hoping for slightly better results.
     
  2. Jan 17, 2023 at 5:52 PM
    #92
    rruff

    rruff New Member

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    These numbers seem kinda sad... but I just took a look at Fuelly and 2022 Tundras are averaging ~16.9 vs ~13.9 for the 5.7 or 22% better... which is pretty huge.
    https://www.fuelly.com/car/toyota/tundra
     
    Durtywrench likes this.
  3. Jan 17, 2023 at 6:03 PM
    #93
    Durtywrench

    Durtywrench New Member

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    I had a leveled 20 tundra on 34” and was getting 16 mpg by hand not trip computer in winter . My current 23 on stock tires is getting 16.5 and I drive very light footed . As soon as turbos were mentioned I didn’t expect good mpg though .
     
  4. Feb 2, 2023 at 5:35 AM
    #94
    TUNDRA-TY

    TUNDRA-TY Winter SUCKS!

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    285-70R17 Falken Wildpeaks AT3W
    Method 316s 17x8 +25
    15mpg...ish
     
  5. Feb 2, 2023 at 6:28 AM
    #95
    Archive

    Archive New Member Vendor

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    Archive Garage Suspension
    22 SR5 CrewMax 6.5 TRD OR
    285/75-18 34.8" Toyo AT3 on stock wheels (no poke) and a stupid contractor cap that catches air.

    34.8" actually make the speedo more accurate than stock 32.6" tires, that explains how the truck reports good numbers when stock

    Won't do better than 15mpg, but I have less than 2,000 miles and might be in a break-in tune?

    By the way, never let this much snow accumulate on your vehicles. This storm concaved the roof of my work van
    20221119_155014.jpg
     
    Last edited: Feb 2, 2023
    BMP, dekeman, catalac and 4 others like this.
  6. Feb 2, 2023 at 6:39 AM
    #96
    KNABORES

    KNABORES Sarcasm incoming

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    Digging that lowering kit. That should improve your mileage. I'm afraid the crude nature of how it was achieved has added quite a bit of weight and aerodynamic drag though, likely negating any improvements.
     
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  7. Feb 2, 2023 at 7:20 AM
    #97
    osu1978

    osu1978 New Member

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    Your truck has a snowhawk.
     
    Archive[QUOTED] and KNABORES like this.
  8. Feb 2, 2023 at 8:23 AM
    #98
    mass-hole

    mass-hole New Member

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    I've noticed similar with my 2014 F150. My in town mileage seems to be the same on 315/70R17 KO2's and the faster you go the more it diverges from the stock mileage. The width of a 315 or 12.5 is the killer. The thing is my 315/70R17's + the wheels was only like 1 lb heavier than the 275/60R20's I had on before so it kinda makes sense that the around town didnt change much. Im not spinning up much more mass.

    I want my next set of tires to be a 285 or 295 or 11.5" but still say around a 35 diameter. I think that will help a lot. Toyo has a 35x11.5 and nitto has a few options in that size too.
     
    Last edited: Feb 2, 2023
  9. Feb 2, 2023 at 8:54 AM
    #99
    00081422Tundra

    00081422Tundra New Member

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    That's a lot of snow! Almost looks like Steamboat.
    I have been so disappointed in my millage with the 285/75/18 this winter that I went back to the factory tires, my MPG of course returned to avg 18-20mpg. I have decided to run smaller tires during the winter and put the Wildpeak AT3W back on in spring. Early fall I was averaging 17mpg with the AT3W once winter settled in was closer to 13mpg. I think since the OME tires weighing 38lbs vs the AT3W at 68 lbs has a lot do with it, the V6 has a hard time turning those in colder, snowy conditions, I'm sure its one of many factors.
     
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  10. Feb 2, 2023 at 10:56 AM
    #100
    rruff

    rruff New Member

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    Tread compounds of the ATs getting stiff at cold temperatures, most likely.
     
  11. Feb 2, 2023 at 8:33 PM
    #101
    cvd2312

    cvd2312 New Member

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    Off-topic, but did you black out your TRD OR wheels? Hard to tell from that pic
     
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  12. Feb 3, 2023 at 4:01 AM
    #102
    Archive

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    Yes, I painted them with Duplicolor Wheel paint in Satin Black. Good paint, I have used it for years, sticks well and looks decent.

    20220623_203222.jpg
     
  13. Feb 3, 2023 at 7:59 AM
    #103
    catalac

    catalac New Member

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    I was a bit surprised how much mileage dropped after replacing the Oem donuts, was getting long term 17 mpg went up a size on ta ko 2 now and am now getting 15.5, is winter though so will see in summer.
     
  14. Feb 3, 2023 at 8:51 AM
    #104
    Archive

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    In my experience, any Toyotas I put taller tires, it really drops mileage a lot. I feel that is probably due to increased throttle % pushing the ECU to dump fuel.
     
  15. Feb 3, 2023 at 8:53 AM
    #105
    TUNDRA-TY

    TUNDRA-TY Winter SUCKS!

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    Bigger tire=more weight. More energy/fuel needed to turn them...

    :burnrubber:
     
  16. Feb 3, 2023 at 5:28 PM
    #106
    Tundra Owner2Be

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    If you have time can you measure the amount of space left in the front wheel well or take a side pic without the snowhawk? I'm considering getting 285/75/18 (34.8 x11.5) Cooper Discoverers, but unsure of rub near or at full lock. I love the size and pattern of the tire, and the stance the truck has when installed. Did you do any trimming or pinning back of the mud flaps/ well material? Thanks.
     
  17. Feb 3, 2023 at 6:46 PM
    #107
    Archive

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    Definitely no rub, there's nearly 1" with wheels turned, even with the Off Road flaps, this is because stock wheels and narrower 285s, as compared to low offset aftermarket wheels often with 12.5" tires
     
  18. Feb 4, 2023 at 3:50 AM
    #108
    b0yax

    b0yax New Member

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    is it the 35x12.5x18? how does it perform on snow, rain? noise and ride?
     
  19. Feb 4, 2023 at 8:16 AM
    #109
    Breathing Borla

    Breathing Borla I'd rather be fishing

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    do they make that in matte black? I was thinking I could hit the center caps of the stock platinum wheels when I get them
     
  20. Mar 31, 2023 at 3:33 PM
    #110
    Cjones2023

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    I’ve got factory limited wheels with 295/60r20 toyo at3’s and before I was getting anywhere from 16.5 to 17.5 around town and short interstate commute to work. With lift and tires I’m getting about 15 to 15.5 but well worth the look.

    3EDD68F7-782F-4DFE-8BBE-30C5D6AE126A.jpg
     
    Coppertune, 4mm and Archive like this.
  21. Mar 31, 2023 at 5:40 PM
    #111
    Jr3volution

    Jr3volution New Member

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    I’m on 35s and getting and averaging of 16mph
    96CEDABE-AFDA-4326-BA08-5E01877A12E2.jpg
     
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  22. Mar 31, 2023 at 6:22 PM
    #112
    sirlinus

    sirlinus New Member

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    I have about 5k miles now on 35x12.5 KO2s on my '23 pro. Seems to have settled in to about 16 mpg consistently using manual calc and correcting for tire size. But, highway drags it down, especially driving at 75+ which is my usual speed.
     

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