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Tundra fuel economy 5.7

Discussion in '3rd Gen Tundras (2014-2021)' started by Lexaris1, Sep 26, 2017.

  1. Sep 26, 2017 at 10:48 AM
    #1
    Lexaris1

    Lexaris1 [OP] New Member

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    so I got the 38 gallon tank and it's eating fuel like a beast. Will it get better as the motor breaks in? What upgrades can I do to help?
     
    ColoradoTJ likes this.
  2. Sep 26, 2017 at 11:05 AM
    #2
    Netmonkey

    Netmonkey Don't be a Dumbass

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    Georgetown, TX
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    Icon stage 2 lift, 295 60 20 nitto ridge grapplers, fuel kranks, TRD dual exhaust, TRD rear sway bar
    you bought a 5300+ pound truck with a 5.7 liter engine and you are worried about fuel economy? the motor is ready to go when you bought it. what mileage are you getting now? if you are getting around 15mpg, then you are doing good. mods for better mpg.. yeah... lighter shoes and less weight on the skinny pedal. :)
     
    Last edited: Sep 26, 2017
  3. Sep 26, 2017 at 11:08 AM
    #3
    SuperSilverTundra

    SuperSilverTundra i didnt pull up i Landed

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    3"/1" TOYTEC 18x9 XD818 Heist 295/70r18 COOPER XLT DirtyDeeds BAMuffler 2018 LEDs KatzKin Leather S&B CAI
    lol @Lexaris1 it just gets worse don't expect it to get any better im at 12.5mpg I added a cai and it went up a few mpgs but then the cpu realized it and now its back to 12.5 I have had my truck for about 1 year and 1/2 I just reached 17,000 miles I think 12.5 is as good as it gets
     
    jstchilln likes this.
  4. Sep 26, 2017 at 11:10 AM
    #4
    gosolo

    gosolo “The .com stands for communist”, Dale Gribble

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    NW Oregon
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    2"CB shackles, bushings and 1 shim, lockerdown console vault, rear folding seat back mod, snugtop shell with opening side windows, 46g fuel tank, SDHQ sliders and hidden winch, Decked Drawers, Alcan leaf springs and got rid of the interior chrome
    Always going down hill and having a tailwind helps.
     
  5. Sep 26, 2017 at 11:14 AM
    #5
    Viper3G

    Viper3G Why isn't work more like this?

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    Rick
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    Really depends on your driving mix of city and highway too. Unloaded in pure city with trips about 2-5 miles I get about 11 mpgs. The best highway was 17 mpgs and I was doing about 70 mph. Saying that, I knew what I was getting into when I bought it and the larger tank was something I really wanted. On road trips (not towing or hauling stuff) I get almost 500 miles between fill ups.
     
    Shukidevdas and 4x4_Angel like this.
  6. Sep 26, 2017 at 11:14 AM
    #6
    PRO BLANCO

    PRO BLANCO Dirt biking & fishing

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    Love it. feed that beast and she'll treat you right. ;)
     
  7. Sep 26, 2017 at 11:23 AM
    #7
    big_jarv

    big_jarv New Member

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    Stop and go city kills me. I just averaged 11ish on my last fill up all city/completely stock.

    I took a 265 mile road trip and averaged 18mpgs.
     
    Filthyphil and 15whtrd like this.
  8. Sep 26, 2017 at 11:25 AM
    #8
    geno0506

    geno0506 New Member

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    13mph, oops 13 MPG, big Ridge Grapplers and heavy foot, it's a 5.7 and I bought into waste as much gas as possible to support global warming!
     
    Last edited: Sep 26, 2017
    Wvmoonshiner, louscrw and Law323 like this.
  9. Sep 26, 2017 at 11:29 AM
    #9
    SuperSilverTundra

    SuperSilverTundra i didnt pull up i Landed

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    3"/1" TOYTEC 18x9 XD818 Heist 295/70r18 COOPER XLT DirtyDeeds BAMuffler 2018 LEDs KatzKin Leather S&B CAI
    you drive pretty slow at 13mph you must get great gas mileage @geno0506 :rofl:
     
  10. Sep 26, 2017 at 11:36 AM
    #10
    Metro14536

    Metro14536 New Member

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    Brandon
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    Shouldn't have a problem getting 16-17 mpg stock.
    My 14 DC 4x2 I was getting 17.4
    My 17 CM 4x4 I'm getting 16.9
    And for both that's with like going 80-85 on the highway.
     
    ColoradoTJ likes this.
  11. Sep 26, 2017 at 11:36 AM
    #11
    geno0506

    geno0506 New Member

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    Yeah, I try! :cheers:
     
  12. Sep 26, 2017 at 11:51 AM
    #12
    COMiamiFan

    COMiamiFan SSEM #3. Don't forget to try the search bar.

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    3" lift and 35" tires . . . about 13-14 MPGs. Ignore your miles to empty and average MPG or it will drive you crazy. Just enjoy the ride.
     
  13. Sep 26, 2017 at 12:02 PM
    #13
    SuperSilverTundra

    SuperSilverTundra i didnt pull up i Landed

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    3"/1" TOYTEC 18x9 XD818 Heist 295/70r18 COOPER XLT DirtyDeeds BAMuffler 2018 LEDs KatzKin Leather S&B CAI
    aint that the truth @COMiamiFan I realized this a while back now I just leave my timer on display so I know how much time I wasted sitting in traffic instead of how much gas im burning :burp:
     
    COMiamiFan likes this.
  14. Sep 26, 2017 at 12:06 PM
    #14
    smslavin

    smslavin Behind a lens...

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    Some stuff
    I'm running just shy of 12. Light foot and I'm off the line at lights like a little old lady going to play bridge.
     
  15. Sep 26, 2017 at 12:10 PM
    #15
    MistrRoboto

    MistrRoboto '17 MGM SR5 TRD CrewMax

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    16ish here, bone stock mixed highway and city. Drops quick in city. All be over soon when I can afford lift and tires... Then I'll just stop looking.
     
  16. Sep 26, 2017 at 12:12 PM
    #16
    COMiamiFan

    COMiamiFan SSEM #3. Don't forget to try the search bar.

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    So hauling ass and no sense of what is going on around you. Got it.
     
    4x4_Angel, Law323, Sunnier and 5 others like this.
  17. Sep 26, 2017 at 12:16 PM
    #17
    smslavin

    smslavin Behind a lens...

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    Some stuff
    [​IMG]
     
  18. Sep 26, 2017 at 12:30 PM
    #18
    gdiep

    gdiep I like cookies

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    The Tundra is my wife's DD. She's averaging 13. I love my wife.
     
  19. Sep 26, 2017 at 12:31 PM
    #19
    geno0506

    geno0506 New Member

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    and we hear at Tundras.com, love you! :bananadance:
     
  20. Sep 26, 2017 at 12:32 PM
    #20
    chphilo

    chphilo Tundra addict

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    Reset your mpg meter when you are about to go down a huge downhilll. It won't make any long-term difference, but boy it does make me feel good to see some huge numbers. :D
     
  21. Sep 26, 2017 at 1:19 PM
    #21
    MatthewPTguy

    MatthewPTguy Not a new member

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    First rule about 5.7 fuel mileage?..... Don't talk about 5.7 fuel mileage....
     
  22. Sep 26, 2017 at 1:29 PM
    #22
    SuperSilverTundra

    SuperSilverTundra i didnt pull up i Landed

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    lol...:D:rofl::rofl: I have done this and your right it does trick your mind into feeling better about the mpgs but then when I have to tow something its over:facepalm:
     
  23. Sep 26, 2017 at 1:31 PM
    #23
    Wilbur

    Wilbur New Member

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  24. Sep 26, 2017 at 1:37 PM
    #24
    monaco730

    monaco730 New Member

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    15 mpg with trd dual exhaust and K&N intake. I have the green MPG bar on my display at all times and it helps a lot. Like @smslavin I'm like an old lady pushing the gas off the line. Heads on a swivel behind me every time trying to get in another lane to pass me :burnrubber:
     
    geno0506 and smslavin like this.
  25. Sep 26, 2017 at 1:39 PM
    #25
    smslavin

    smslavin Behind a lens...

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    I figure it's right of tonnage.
     
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  26. Sep 26, 2017 at 4:01 PM
    #26
    Outbound

    Outbound SSEM #2.5, Token AmeriCanadian

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    If anyone is finding that the fuel mileage on their 3rd gen is too bad for them to handle, I'd be more than happy to take the truck off your hands. I'll even fly down and pick it up. :)
     
  27. Sep 26, 2017 at 4:06 PM
    #27
    dandailey

    dandailey King Tundra

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    Another thread that proves we need a thumbs down button...
     
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  28. Sep 26, 2017 at 4:07 PM
    #28
    Tundra9831

    Tundra9831 New Member

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    I'm still under 500 miles on my 2018, but I see between 11-15 mpg per trip depending on the distance and speed. I bet I'll get 11-12 mpg average with most of my driving, but hopefully 15+ on trips. I'm glad to have the 38 gal tank.
     
  29. Sep 26, 2017 at 4:26 PM
    #29
    geno0506

    geno0506 New Member

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    I just continuously keep reseting my MPG gage until I see 15 MPG but it only lasts a few miles! lol :playball:

     
    Last edited: Sep 26, 2017
  30. Sep 26, 2017 at 4:35 PM
    #30
    Tundra9831

    Tundra9831 New Member

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    On the 2018 instrument cluster it tells you the mpg stats for every drive when you turn off the truck. I'm not sure if the previous instrument cluster did that, but it is definitely a reminder of how much fuel you are using.....ohhh well, didn't buy this truck for the fuel economy.
     

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