1. Welcome to 4Runners.com!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all 4Runner discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other 4Runner owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

2019 horrible gas mileage

Discussion in '5th Gen 4Runners (2010-2024)' started by Celly71, May 28, 2022.

  1. May 28, 2022 at 2:12 PM
    #1
    Celly71

    Celly71 [OP] New Member

    Joined:
    May 28, 2022
    Member:
    #27224
    Messages:
    15
    Gender:
    Male
    First Name:
    James
    Vehicle:
    19 runner
    All the bells & whistles
    Hello all I have owned Toyotas all my life & always been happy with the gas mileage… but… just picked up a 19 runner with ALL the bells & whistles has 30k on it so I know it’s not going to get great gas mileage but 11 MPG???? & I run 91 Octane My 19 Chevy utility van that Weighs 10K gets 10 MPG..is it really that bad? So disappointed..love it though!
     
  2. May 28, 2022 at 2:23 PM
    #2
    LuLu

    LuLu New Member

    Joined:
    Mar 20, 2022
    Member:
    #26229
    Messages:
    297
    Gender:
    Male
    Utopia
    Vehicle:
    2022 TRD Sport
    OEM Crossbars OEM Hood Deflectors OEM Running Boards Tints
    Unfortunately, the truck has no use for 91 octane gas. You get the milage of V8 in a V6.
    Good thing is the resale value unlike other local trucks. My take.
     
    K-Paul, Toy4X4 and Tmiesowicz like this.
  3. May 28, 2022 at 2:39 PM
    #3
    Beachguy

    Beachguy Normal turned up too loud

    Joined:
    Feb 18, 2021
    Member:
    #19847
    Messages:
    2,247
    Gender:
    Male
    First Name:
    Robert
    Texas
    Vehicle:
    2021 SR5 Premium
    Welcome to the forum. I squeezed 18.1 out of my last tank and I never buy high octane. 11 seems low but you didn’t say what bells and whistles. Lots of them cut into the mileage.
     
    4runGirl88 likes this.
  4. May 28, 2022 at 2:39 PM
    #4
    karmatp

    karmatp New Member

    Joined:
    Apr 12, 2016
    Member:
    #1856
    Messages:
    267
    Gender:
    Male
    First Name:
    Trevor
    Arizona
    Vehicle:
    2016 SR5 4x4
    TRD wheels, 265/70/17 KO2's, Bilstein 5100's .85
    I average 19mpg in my 2016. That seems pretty low, especially if it’s all stock.
     
  5. May 28, 2022 at 2:45 PM
    #5
    SlvrSlug

    SlvrSlug New Member

    Joined:
    Jun 3, 2018
    Member:
    #6172
    Messages:
    6,602
    Gender:
    Male
    First Name:
    John
    Ramona Ca.
    Vehicle:
    2017 4-Runner SR-5 P. Kings, Built Right uca’s, Durabumps, RSG sliders
    Welcome to the forum.
     
    Celly71[OP] likes this.
  6. May 28, 2022 at 2:45 PM
    #6
    Tmiesowicz

    Tmiesowicz New Member

    Joined:
    Dec 30, 2021
    Member:
    #24881
    Messages:
    1,186
    Gender:
    Male
    The better half of New York
    Vehicle:
    2022 4 runner SR5 premium 4x4
    40/60 city/highway I am guessing and routinely get 17-18 (normal weeks)..took a 200 mile trip each way from New York to Ohio today and back and topped 19 mpg, my dash has always been accurate from new. For going 80mph the whole way back with ac on I can’t complain from a big 6 brick with 3.73’s and 5 speed transmission. I agree 91 octane isn’t needed and can actually be negatively effecting you. Do you use top tier fuel? Stuck in 4 wheel drive? Or drive it like a corvette? Hand calculated or dash reading for the 11mpg. My 01 Tahoe is better than that somethings off here.

    7B2DEE8C-1E38-4B98-8CA8-E657ECE2B05D.jpg
     
    Singleminded and Celly71[OP] like this.
  7. May 28, 2022 at 2:46 PM
    #7
    Celly71

    Celly71 [OP] New Member

    Joined:
    May 28, 2022
    Member:
    #27224
    Messages:
    15
    Gender:
    Male
    First Name:
    James
    Vehicle:
    19 runner
    All the bells & whistles
    Yeah I just sold my 99 pre runner for 2k more then I paid for it but do regret selling it as soon as it drove away, I’m just running the 91 to keep it cleaner it’s not a daily driver thank god!
     
  8. May 28, 2022 at 2:48 PM
    #8
    Celly71

    Celly71 [OP] New Member

    Joined:
    May 28, 2022
    Member:
    #27224
    Messages:
    15
    Gender:
    Male
    First Name:
    James
    Vehicle:
    19 runner
    All the bells & whistles
    Yeah it’s no wh
    thanks yeah it’s no where near stock
     
  9. May 28, 2022 at 2:50 PM
    #9
    banjos-n-beer

    banjos-n-beer New Member

    Joined:
    Oct 7, 2021
    Member:
    #23686
    Messages:
    678
    Gender:
    Male
    First Name:
    Steve
    Maine
    Vehicle:
    2018 Pro
    I average 19 mpg year round. 19.5 in the fall/spring, 18.5 during the winter.
     
    Celly71[OP] likes this.
  10. May 28, 2022 at 2:52 PM
    #10
    Celly71

    Celly71 [OP] New Member

    Joined:
    May 28, 2022
    Member:
    #27224
    Messages:
    15
    Gender:
    Male
    First Name:
    James
    Vehicle:
    19 runner
    All the bells & whistles
    must be
    nice
     
  11. May 28, 2022 at 2:59 PM
    #11
    Celly71

    Celly71 [OP] New Member

    Joined:
    May 28, 2022
    Member:
    #27224
    Messages:
    15
    Gender:
    Male
    First Name:
    James
    Vehicle:
    19 runner
    All the bells & whistles
    How could better octane decrease fuel mileage? It’s better to run higher octane. Only Costco gas not in 4 wheel. It feels like it doesn’t have a whole lot of power maybe it needs to be re geared . No I drive it like a grandpa, my corvette gets twice the mileage lol dash reading I do drive 70-80 tho I’d be happy with 15
     
  12. May 28, 2022 at 3:50 PM
    #12
    muddyix

    muddyix New Member

    Joined:
    May 17, 2022
    Member:
    #27104
    Messages:
    137
    Gender:
    Male
    AZ & TN
    Vehicle:
    '22 AG ORP
    I’ve only filled the truck twice so far, but I’m averaging 20.2mpg. I’m about to take it cross country next week so we will see how it does during that
     
  13. May 28, 2022 at 4:07 PM
    #13
    Tmiesowicz

    Tmiesowicz New Member

    Joined:
    Dec 30, 2021
    Member:
    #24881
    Messages:
    1,186
    Gender:
    Male
    The better half of New York
    Vehicle:
    2022 4 runner SR5 premium 4x4
    Are you lifted with big tires? If not you don’t need a re gear, and these engines do not require higher octane to achieve maximum performance, unless you get ethanol free no benefit, or have a supercharger or turbo set up with different tuning. Also try a top tier fuel like Sunoco or citgo, Mobil, not sure what you have around you but try top tier, check engine air filter.
     
    DUSTYDOGDAN likes this.
  14. May 28, 2022 at 4:17 PM
    #14
    Celly71

    Celly71 [OP] New Member

    Joined:
    May 28, 2022
    Member:
    #27224
    Messages:
    15
    Gender:
    Male
    First Name:
    James
    Vehicle:
    19 runner
    All the bells & whistles
    yes it’s lifted with bigger tires, I’ll check the filter I thought Costco had decent gas with a good price we don’t have any of those out in Cali maybe I’ll try shell or chevron
     
  15. May 28, 2022 at 4:17 PM
    #15
    grizzlypath

    grizzlypath New Member

    Joined:
    Dec 2, 2020
    Member:
    #18241
    Messages:
    68
    Gender:
    Male
    Vehicle:
    2020 ORP-KDSS
    There's no such thing as "better octane" there's higher or lower octane. Octane is just a unit of measurement to control pre-detonation during the combustion process. Different engines are designed to run different levels of octane. You may actually be running less efficiently by running higher octane than the engine is designed for and wasting money. No offense, but do a bit of research there, you'll save money and it could help at least partially with your fuel economy problem!
     
  16. May 28, 2022 at 5:37 PM
    #16
    Thatbassguy

    Thatbassguy New member? Really??

    Joined:
    Mar 27, 2019
    Member:
    #9314
    Messages:
    9,525
    Gender:
    Male
    First Name:
    James
    S/E Wisconsin
    Vehicle:
    2019 TRDORP, KDSS, MGM
    RSG sliders, Yakima offgrid basket, Pro-Comp wheels, SOS Streamline bumper and skids, Warn VR EVO10S winch + Ultimate Sidewinder, Bilstein 6112 + 5100 + rear lift coils, Rigid Dually SS ditch lights w/Caliraised brackets and OEM style dash switch
    How fast do you drive? They really guzzle gas at 80+, especially if you have big, heavy tires.

    11 seems really bad, though. I have oversized MT's and get much better than that, even when I have the roof rack on.
     
  17. May 28, 2022 at 5:46 PM
    #17
    Singleminded

    Singleminded New Member

    Joined:
    Jul 12, 2020
    Member:
    #15483
    Messages:
    1,656
    Vehicle:
    2020 4Runner Limited
    OEM LED foglights
    Yeah, 11 doesn’t make sense to me unless there’s both a lot of gas sucking mods and a lot of city driving. 11 is too low for 60 percent highway. I often get 20 on highway trips, Espec if I keep the speeds reasonable, and that’s continued after switching to AT tires.

    I’ve averaged a bit above 17 for my 15k miles of use, according to the computer. And the computer is typically quite close to my hand calculations at the pump. City mileage sucks, but I typically see 13-16 there, prob avg 14-15.
     
    Thatbassguy[QUOTED] likes this.
  18. May 28, 2022 at 6:43 PM
    #18
    McSpazatron

    McSpazatron New Member

    Joined:
    Feb 16, 2021
    Member:
    #19810
    Messages:
    2,879
    Gender:
    Male
    Vehicle:
    2021 4runner OR
    Dobinson IMS Warn Bumper CaliRaised Sliders 265/70 K02s
    My trip computer shows 6 mpg, but I have displaying the “since refuel” screen, and I only driven it 2 miles down the block since refuel. And I idled a lot. Stock size tires. Trip computer is 100% accurate.

    MPG numbers only mean something when you give some context. Saying that you get 11mpg is pretty much saying not much.

    How big are your tires? Is the MPG calculation at the very least over the course of one or two tank-fulls? What is your typical drive like?
     
  19. May 28, 2022 at 6:56 PM
    #19
    Singleminded

    Singleminded New Member

    Joined:
    Jul 12, 2020
    Member:
    #15483
    Messages:
    1,656
    Vehicle:
    2020 4Runner Limited
    OEM LED foglights
  20. May 28, 2022 at 8:40 PM
    #20
    Celly71

    Celly71 [OP] New Member

    Joined:
    May 28, 2022
    Member:
    #27224
    Messages:
    15
    Gender:
    Male
    First Name:
    James
    Vehicle:
    19 runner
    All the bells & whistles
    I’m not an idiot sorry I used the wrong word I know 91 octane has 4 more octane then 87.. I think, I just have never herd that a higher octane could be worse for an engine that’s all, it’s not really the cost of the fuel I have a Honda to drive but I would definitely drive my runner if it were more efficient.. but if it doesn’t make a difference at all & dosent ping then maybe I’ll just run the lower octane thanks for your help!
     
  21. May 28, 2022 at 8:56 PM
    #21
    Trail Runnah

    Trail Runnah New Member

    Joined:
    May 8, 2020
    Member:
    #14189
    Messages:
    1,677
    Gender:
    Male
    Vehicle:
    2013 T4R Trail Edition
    Stock
    They're designed to run on 87 octane, anything higher is throwing money out the window. I've run 87 octane and mine for the last 60,000 miles and I average just over 20 MPG consistently. My last tank was 20.9 MPG.

    These vehicles are just not fuel efficient to begin with, and they're very sensitive to modification. Also, if you drive with a heavy foot and do a lot of around town driving, your mileage will suffer. Same with driving over 70mph, the engine works hard and sucks a lot of fuel to maintain that speed, especially if you live in hilly terrain.

    A re-gear may make it feel not as slow, but the payback on mileage would be take a long time considering a re-gear could cost you 2-3 grand.
     
  22. May 29, 2022 at 5:43 AM
    #22
    JlMBO

    JlMBO New Member

    Joined:
    May 11, 2022
    Member:
    #27022
    Messages:
    4
    Gender:
    Male
    First Name:
    Jim
    Vehicle:
    2022 TRD Off Road premium
    After someone put big tires on it maybe they somehow did a performance tune to the ECU to compensate.
     
  23. May 29, 2022 at 9:17 AM
    #23
    Cardork

    Cardork New Member

    Joined:
    Jul 29, 2021
    Member:
    #22578
    Messages:
    169
    Redwood Curtain
    Vehicle:
    2021 Venture
    I used to look at my mileage and really strive to hit 20 MPG, but it didn’t take long to stop looking. Especially when living in Humboldt county which has some of the most expensive gas prices in one of the most expensive states, it was better to look away once filling went so far past $100.

    Ultimately, the mileage will never be very good. I get the frustration owing that our vehicles are neither fast nor a towing beast, but I really did go into with my eyes open. Would be sweet if they were quicker though…
     
    Scottsdale and Trail Runnah like this.
  24. May 29, 2022 at 9:22 AM
    #24
    Steve40th

    Steve40th New Member

    Joined:
    Sep 28, 2019
    Member:
    #11462
    Messages:
    203
    Gender:
    Male
    First Name:
    sTEVE
    I got 20, via fill up and using caclulator , in my 2019 4runner Limited.
    And 91 wont help with fuel economy. Best we can do is find ethanol free fuel. But even that wont make much difference.
    Or retune it with an aftermarket tuner, after putting headers on it and a CAI. Best you can really do... Its a old school truck, it is what it is.
     
  25. May 29, 2022 at 9:27 AM
    #25
    Steve40th

    Steve40th New Member

    Joined:
    Sep 28, 2019
    Member:
    #11462
    Messages:
    203
    Gender:
    Male
    First Name:
    sTEVE
    And it has been proven you make more power on lower octane. Unless the car needs the slower burn rate of higher octane, like with a supercharger, turbo or high compression, then you are wasting money.
    There are ways to increase, but the time to recover the costs may be counter productive.
     
  26. May 29, 2022 at 4:35 PM
    #26
    DVS1

    DVS1 New Member

    Joined:
    Aug 4, 2019
    Member:
    #10780
    Messages:
    55
    Gender:
    Male
    First Name:
    Ray
    Oahu, HI. to Tampa, FL.
    Vehicle:
    18 TRD Off Road Premium w/KDSS
    Fuzzy dice
    I have a 18 ORP with 275/70/17. I was averaging about 17.5 mpg with stock exhaust.
    Installed a TRD exhaust and gas mileage had dropped to 14.3. I never heard of exhaust decreasing mpg.
     
  27. May 29, 2022 at 4:43 PM
    #27
    Trail Runnah

    Trail Runnah New Member

    Joined:
    May 8, 2020
    Member:
    #14189
    Messages:
    1,677
    Gender:
    Male
    Vehicle:
    2013 T4R Trail Edition
    Stock
    Wow, I would list this in the "worst mod ever thread".

    Do you like the sound of it? If you're getting on it more to hear the noise or feel the extra power (there is none), you'd get worse mileage.

    When I put a Magnaflow catback on my F-Body I found I got on it a lot more because it sounded so good. Of course that was a 5.7L V8, so it sounded amazing.
     
    BionicRandy and Tmiesowicz like this.
  28. May 29, 2022 at 4:55 PM
    #28
    Steve40th

    Steve40th New Member

    Joined:
    Sep 28, 2019
    Member:
    #11462
    Messages:
    203
    Gender:
    Male
    First Name:
    sTEVE
    If the exhaust freed up, you generally have to adjust the tune, via spark and fuel mapping to take advantage of it.
    Some engines from the factory run rich, to preserve the motor. Not overly rich, just enough. LS type engines run around 11.7. When you throw headers on, it sees more air and dumps more fuel. Then you retune it, and bring the Air Fuel ratio up to around 12.7, WOT for example, and you gain significant HP. Just an example. Not sure how many people tune 4runner ECMs on a dyno.. But, its just an air pump. You allow more air out, the engine needs to be retuned to take advantage of it.
     
    BionicRandy and Trail Runnah like this.
  29. May 29, 2022 at 6:37 PM
    #29
    DallasTRDPro

    DallasTRDPro New Member

    Joined:
    Feb 7, 2020
    Member:
    #13058
    Messages:
    1,076
    Gender:
    Male
    Dallas
    Vehicle:
    2021 Honda CRV...UGH!
    You have to drive like a sedated grandma to achieve decent mpg. I get 14-15 around town with a HikeIt throttle controller. If you drive 70mph you won't see much more than 17-18. 55-60mph is the sweet spot and unfortunately that the wheel shake sweet spot too.
     
  30. May 30, 2022 at 1:49 AM
    #30
    Daytonaviolet

    Daytonaviolet TRD Bro

    Joined:
    Mar 13, 2019
    Member:
    #9167
    Messages:
    1,626
    Gender:
    Male
    Bay Area, CA
    Vehicle:
    Blizzard Pearl TRD Bro
    Is your truck a lifted limited with big tires ?
     
    Thatbassguy likes this.

Products Discussed in

To Top