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New Truck, terrible mileage...even worse than expected!

Discussion in '2.5 Gen Tundras (2014-2021)' started by Jdon35, Dec 9, 2016.

  1. Dec 9, 2016 at 11:44 AM
    #1
    Jdon35

    Jdon35 [OP] New Member

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    2017 MGM Tundra SR5 TRD OFF ROAD
    Leveling Kit, 33" Toyo M/T tires, XD series 18" rims, AMP running boards, AMP bed extender, TRD PRO grill /hood bulge
    I just bought 2017 Tundra, 5.7 liter. It does have a slight lift and 33" tires. I filled up and have gone 115 miles, my gas tank says its half full....is this normal???
     
    TheBeast likes this.
  2. Dec 9, 2016 at 11:51 AM
    #2
    BRNG ITT

    BRNG ITT New Member

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    Give it a tank or two until the ECU (engine and transmission) learn your driving habits. Should improve and you'll be getting 14mpg in no time.
     
    HUTCHJ and NewImprovedRon like this.
  3. Dec 9, 2016 at 11:54 AM
    #3
    COMiamiFan

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

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    Parker, CO
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    What size tank you got? Doesn't sound like you have the 38 gallon.
     
  4. Dec 9, 2016 at 11:56 AM
    #4
    Jdon35

    Jdon35 [OP] New Member

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    Leveling Kit, 33" Toyo M/T tires, XD series 18" rims, AMP running boards, AMP bed extender, TRD PRO grill /hood bulge
    Ok, will do, I knew I wouldn't be getting great mileage, but was a little worried it might be worse than expected,,,,it has the smaller tank, I believe its 26 gallon???
     
  5. Dec 9, 2016 at 11:59 AM
    #5
    COMiamiFan

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

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    You'll grow out of it . . . we all did :(
    Pretty soon all you will care about is how bad ass we look driving it around.
     
    dino112265, aperezsh, Law323 and 4 others like this.
  6. Dec 9, 2016 at 12:01 PM
    #6
    louscrw

    louscrw all jacked up on Mt. Dew

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    Lou
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    So many variables, but right on the window sticker it states 13 city / 15 highway. Your truck will improve some over the first few tanks, but it is what it is. I hover right around 13.2mpg (all city stop and go driving). Some people drive more conservative than others and that plays a big part too. What does the display say your average mpg are?

    Also, there is a rather large reserve on our tanks, even when I run it down to the low fuel light (~20 miles range per the display), I can only get about 22 gallons in...that leaves about a 4 gallon reserve.

    Oh, and welcome to the world of Tundra. Like @COMiamiFan said, pretty soon you won't care about it.
     
  7. Dec 9, 2016 at 12:08 PM
    #7
    Jdon35

    Jdon35 [OP] New Member

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    2017 MGM Tundra SR5 TRD OFF ROAD
    Leveling Kit, 33" Toyo M/T tires, XD series 18" rims, AMP running boards, AMP bed extender, TRD PRO grill /hood bulge
    The mpg display hovers between 8-13...? Thanks for the help

    @COMiamiFan it is a bad ass looking truck for sure!!!!!!:thumbsup: It's my 4th toyota truck, started out with a 1982 pick up, then a 1998 Tacoma, a 2006 Tacoma, and now the 2017 Tundra, loved them all
     
  8. Dec 9, 2016 at 12:11 PM
    #8
    Payaso 9394

    Payaso 9394 New Member

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    Ricky
    La Puente CA
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    Tint, 33x12.5r18
    I got a 16 2wd I get 12.7 mpg it got 8k miles on it with 33inch tires n thats that it got better after a trip to utah used to get 8mpg :(
     
  9. Dec 9, 2016 at 12:22 PM
    #9
    Lowcountrytj

    Lowcountrytj Buford T. Justice

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    SE GA
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    My F350 6.2 dually single cab flat bed with two 3 ft tool boxes work truck averages 6mpg at work which is short runs and not over 30 mph.
    It may strive to get 10 on the road at best.
    My buddies F250 4door 4wd 6.2 (all stock) average is 11mpg.
    Apples vs oranges but you get the picture.
     
    Black Wolf likes this.
  10. Dec 9, 2016 at 12:52 PM
    #10
    joonbug

    joonbug bacon

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    NorCal - Dublin
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    Your mpg's will improve slightly as your engine breaks in, but that's pretty much going to be your norm. Unfortunately, the 26 gallon tank has about 5-6 gallons left when fuel reads empty and it's supposedly needed to cool the fuel pump. So you really only have about 20 useable gallons. Any reason you didn't get the 38 gallon tank?
     
  11. Dec 9, 2016 at 1:13 PM
    #11
    bsavoir

    bsavoir New Member

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    Killeen, TX
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    Gibson Metal Mulisha Exhaust, Replaced bulbs w/ LED's, AFe intake, Bullydog Tuner, Aftermarket Audio system, Rhino Bed Light sports bar, Tonneau Cover, Spyder Auto Headlights and Taillights, Recon 3rd Brake Light, Kensun HID's, Fender Flares, Custom Leather Interior, Heated Seats, 5% Tint on the Rear Windows, Pod light Foglights, 31" light bar behind the grille, linex spray bedliner, linex sprayed grille, ditch lights w/ dual 3in LED pods, 60" Tailgate LED strip.
    When I got my '14 I was getting about 11mpg driving around base. I now average about 14.5 driving around base during the week. Back in July we took a trip to San Diego I averaged about 17.2mpg during the entire trip. I did the manual calculation vs using the Tundra's gauge. As others have said soon as it breaks in you will see things get better, unless your heavy on the pedal then maybe not.
     
  12. Dec 9, 2016 at 1:17 PM
    #12
    TheBeast

    TheBeast The Beach

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    I get about 13 mixed city/jammed freeways with leveling kit and 33's
    I was able to get close to 15 mpg on my summer trip to grand canyon

    2012 5.7L 4x4
     
  13. Dec 9, 2016 at 1:18 PM
    #13
    TheBeast

    TheBeast The Beach

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    oh and that truck is far from being aerodynamics..but who cares ? It looks good.. :muscleflexing:
     
    Law323 likes this.
  14. Dec 9, 2016 at 1:22 PM
    #14
    thumper7799

    thumper7799 Bad Girls Drive Bad Toys!

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    Erika
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    I'm heavy on the pedal but don't care, I love my truck. Welcome from San Antonio, Texas.
     
    Cfincke and Law323 like this.
  15. Dec 9, 2016 at 1:25 PM
    #15
    bsavoir

    bsavoir New Member

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    I really don't care, I love the sound of my exhaust so I'll be a little heavy on the pedal. Plus reading the spec sheet didn't expect much savings in MPG.
     
  16. Dec 9, 2016 at 1:30 PM
    #16
    mgh-pa

    mgh-pa Perpetually a New Member.

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    I've never seen over 16.5 and mine is bone stock. Usually it's 14-15mpg.

    Lifted and heavy tires, it's expected. We aren't driving Prius's(thank God).

    Sent from my Turbo 2.
     
    thumper7799 likes this.
  17. Dec 9, 2016 at 1:51 PM
    #17
    Jdon35

    Jdon35 [OP] New Member

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    2017 MGM Tundra SR5 TRD OFF ROAD
    Leveling Kit, 33" Toyo M/T tires, XD series 18" rims, AMP running boards, AMP bed extender, TRD PRO grill /hood bulge
    I thought I was buying the 38 gallon tank, sales guy caught that it wasn't after the fact....I don't suppose I could just buy and clamp on the bigger fuel tank?
     
  18. Dec 9, 2016 at 1:53 PM
    #18
    joonbug

    joonbug bacon

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    No, that's not cost effective. A better way to go is add a Transferflow tank, as long as you're not in California. And it's 46 gallons I believe. But will still set you back over $1k
     
  19. Dec 9, 2016 at 2:05 PM
    #19
    14burrito

    14burrito IG @14burrito

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    I have heard of the transfer flow tanks having venting issues
     
  20. Dec 9, 2016 at 2:11 PM
    #20
    Jdon35

    Jdon35 [OP] New Member

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    2017 MGM Tundra SR5 TRD OFF ROAD
    Leveling Kit, 33" Toyo M/T tires, XD series 18" rims, AMP running boards, AMP bed extender, TRD PRO grill /hood bulge
    I am in California....add this to another reason to move out someday....
     
  21. Dec 9, 2016 at 2:25 PM
    #21
    TheBeast

    TheBeast The Beach

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    yeah main reason to go with 2016 or 2017 models is the bigger tank.
     
  22. Dec 9, 2016 at 5:05 PM
    #22
    vidman

    vidman New Member

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    12.8 avg with 35s and 6" lift and the truck sure looks killer
     
  23. Dec 9, 2016 at 5:26 PM
    #23
    831Tun

    831Tun heartless Bastrd

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    Welcome from Ca.
     
  24. Dec 9, 2016 at 6:16 PM
    #24
    bigoltater

    bigoltater New Member

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    2015 5.7 CM limited Avg 315 miles a full tank stock, highway and city driving.

    Added pro suspension and 275 70 18 with fuel 18 rims, added 17lbs per wheel/tire.

    Now I Average 260 miles a tank.

    Yay!!!
     
  25. Dec 9, 2016 at 6:17 PM
    #25
    Abrams65

    Abrams65 New Member

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    You don't do much driving do you? Mine will last around two weeks driving 20-30 a day:boink:
     
  26. Dec 9, 2016 at 6:47 PM
    #26
    thumper7799

    thumper7799 Bad Girls Drive Bad Toys!

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    lol ur funny
     
    gosolo and Marty McFly like this.
  27. Dec 9, 2016 at 6:56 PM
    #27
    SoCalTundra213

    SoCalTundra213 New Member

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  28. Dec 9, 2016 at 6:57 PM
    #28
    thumper7799

    thumper7799 Bad Girls Drive Bad Toys!

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    yep :mudding:You know me to well already
     
    Law323, gosolo and Marty McFly like this.
  29. Dec 10, 2016 at 5:07 AM
    #29
    Crunch527

    Crunch527 Brute Force and Ignorance

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    Wait a minute...you bought a Tundra, which is notorious for delivering the worst fuel mileage of any of the full-size 1/2 ton trucks and you are surprised that with 33's and lift that your gas mileage is worse than expected? Sorry, I know that sounds flippant, but C'mon man...

    10-12 is probably as good as it will get...

    That said, you bought a great truck...even if the gas mileage isn't what you want it to be, the resale and reliability make up for it's thirsty nature...

    BTW: lifted Tundra's with larger tires and lifts are notorious for blowing out the steering rack...otherwise you have a very solid truck...

    Welcome from VA!
     
    MotoTundra likes this.
  30. Dec 10, 2016 at 5:11 AM
    #30
    SoCalTundra213

    SoCalTundra213 New Member

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    Late 2nd and 3rd Gen ONLY. 07s have the best.
     

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