1. Welcome to Tundras.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 Tundra discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other Tundra owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Dropping MPG's

Discussion in '2.5 Gen Tundras (2014-2021)' started by nowayout, Aug 3, 2022.

  1. Aug 4, 2022 at 11:01 AM
    #31
    Ted4311

    Ted4311 Don't Sweat The Small Stuff

    Joined:
    Mar 18, 2017
    Member:
    #6845
    Messages:
    1,403
    Gender:
    Male
    First Name:
    Tim
    SOMD
    Vehicle:
    14 Tundra MGM TRD-OFFROAD 4X4
    A LOT... NEVER ENDS
    I thought with my lift and 35s that getting 13 mpg was fantastic! Damn 16mpg and there is fussing!? 15-16.... I call bad math
     
    AZBoatHauler likes this.
  2. Aug 4, 2022 at 11:02 AM
    #32
    AZBoatHauler

    AZBoatHauler ASCM#3 Desert Dweller

    Joined:
    Aug 13, 2019
    Member:
    #34576
    Messages:
    3,823
    Gender:
    Male
    First Name:
    Adam
    So.Arizona
    Vehicle:
    2017 CM LTD TRD 4x4 MGM, 2017 LandCruiser
    6112 and 5160 w/ CB +2, JL Audio with Kenwood HU, DD 10" Exhaust, RC light bar BD fogs, Platinum LED headlights, RCI skids, WKOR sliders, BD ditch lights, Rago fab mounts
    Current mileage seems in line with mine and what I’ve seen. I’m on 285/70 18s with just over 2” of lift and see 13 around town, 15-16 on the highway. 9-10 towing.
     
  3. Aug 4, 2022 at 11:03 AM
    #33
    Sierradevil

    Sierradevil New Member

    Joined:
    Jul 13, 2022
    Member:
    #80649
    Messages:
    184
    Gender:
    Male
    First Name:
    Dave
    LBC
    Vehicle:
    Tundra-1ea.
    I agree. Opinions on why mpg sucks after buying a V8, towing a trailer and whatever are all opinions by honestly all here that only give an opinion.
    Fact is V8 suck at gas milege.
     
    AZBoatHauler likes this.
  4. Aug 4, 2022 at 11:06 AM
    #34
    AZBoatHauler

    AZBoatHauler ASCM#3 Desert Dweller

    Joined:
    Aug 13, 2019
    Member:
    #34576
    Messages:
    3,823
    Gender:
    Male
    First Name:
    Adam
    So.Arizona
    Vehicle:
    2017 CM LTD TRD 4x4 MGM, 2017 LandCruiser
    6112 and 5160 w/ CB +2, JL Audio with Kenwood HU, DD 10" Exhaust, RC light bar BD fogs, Platinum LED headlights, RCI skids, WKOR sliders, BD ditch lights, Rago fab mounts
    But if you do it right they offer plenty of smiles per gallon.
     
    LS3 and Sierradevil like this.
  5. Aug 4, 2022 at 11:23 AM
    #35
    eick

    eick New Member

    Joined:
    Jan 6, 2020
    Member:
    #40848
    Messages:
    848
    Gender:
    Male
    Vehicle:
    2020 CrewMax TRD Off Road
    I wish I could get 13. Although I do no highway driving, it’s all city and all short trips unless I go camping.

    My tank average is about 11mpg based on hand calc from gas receipt and miles driven and accounting for a few percent size difference. Computer says 9.5 mpg

    On 295/70/18s and just 2.5in lift
     
  6. Aug 4, 2022 at 12:13 PM
    #36
    frichco228

    frichco228 Valued Member

    Joined:
    Jan 9, 2020
    Member:
    #40952
    Messages:
    3,743
    Gender:
    Male
    First Name:
    Frank
    Virginia
    Vehicle:
    2016 Crewmax 4WD, TRD Offroad
    Eibach Pro Truck Stage 2 suspension, HD RAS, 275/70-18 Wildpeak AT, LoPro bed cover, TRD rear sway bar, DD 10 inch exhaust, and various other goodies
    Truth! Longer I drive the better MPG I can get. Driving to work, 12-15 minutes- MPG sucks. Takes almost that long for the truck to warm up to operating temp and by then I am there and shutting it off. Ill get 13ish in that situation. Now if I am driving an hour, 45-70mph, I'll get 16-17
     
    Sierradevil, endagon and Jaypown like this.
  7. Aug 4, 2022 at 7:46 PM
    #37
    nowayout

    nowayout [OP] New Member

    Joined:
    Feb 24, 2017
    Member:
    #6517
    Messages:
    1,060
    Gender:
    Male
    First Name:
    Jason
    NY
    Vehicle:
    17 CM
    I understand the comments about hand calculating etc but this is going by the dash readout which like I said has gone down over the past 5 years. So whether the computer is correct or not there is still a change.

    Brakes were recently done. All was good but I will go over them again, you never know.

    @Terndrerrr so if towing mpg's aren't a good reason to buy a diesel can you tell me some reasons that are?
     
  8. Aug 4, 2022 at 7:53 PM
    #38
    GODZILLA

    GODZILLA ASCM#1 Douchebag formerly known as 50 Buck

    Joined:
    Sep 2, 2019
    Member:
    #35514
    Messages:
    16,212
    First Name:
    Adam
    Wyoming
    Vehicle:
    2019 Cavalry Blue SR5 Crewmax
    RCI Skids and Sliders SCS Ray10 Wheels in Gunmetal Grey Falcon Tow/Haul Shocks by Terraflex Jomax ABS Sensor Guards
    Full disclosure: I didn't read all the previous responses so I apologize for any repeats.

    Things to consider aside from the maintenance suggested by others:
    1. Are you hand calculating mileage, or using the computer? Computers have a bit of variance.
    2. Have you had your speedometer recalibrated for the bigger tires? If not, then you are getting better mileage than what the computer reports because you are travelling further with each tire rotation than what it is calculating. Example: If you increase your tire's circumference by 10% you are going 10% faster and travelling 10% further than the odometer, speedometer, and fuel computer will show.
    3. Is your truck Flex Fuel, and if it is, are you using E85? Ethanol is "cleaner" but you get worse mileage using it. Non ethanol fuel will get better MPGs every time.
    4. Related to point 3, there has been a guberment decisions to use more corn in gas to try and keep prices down, so this will be tanking mileage for any fuel that isn't ethanol free.
     
    nowayout [OP] likes this.
  9. Aug 11, 2022 at 6:31 PM
    #39
    nowayout

    nowayout [OP] New Member

    Joined:
    Feb 24, 2017
    Member:
    #6517
    Messages:
    1,060
    Gender:
    Male
    First Name:
    Jason
    NY
    Vehicle:
    17 CM
    I am using the computer. Actually I have been watching my throttle and I am up to 14.7mpg on the computer. Also took my dirty deeds exhaust off and went back to the factory system.

    Truck is not flex fuel.
     

Products Discussed in

To Top