1. Welcome to Tacoma World!

    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 Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Gas gauge misleading?

Discussion in '2nd Gen. Tacomas (2005-2015)' started by H James, Mar 17, 2011.

  1. Mar 17, 2011 at 8:30 PM
    #1
    H James

    H James [OP] Member

    Joined:
    Mar 17, 2011
    Member:
    #53216
    Messages:
    13
    Gender:
    Male
    Hey all. I'm new here but had a question. Maybe one of many I might have.

    Just picked up my 2011 access cab a few days ago. Mostly love it so far. I put on 1080 miles so far. Question, though. The fuel tank is supposed to be 21.1 gallons, but I ran it down into the "E" on the gauge and the little warning light came on. I drove for another 20-30 mi. after that both times. Both times when I went to fill up, I only got a little over 18 gallons and the second time a little over 17.5 gallons in the tank. What's up? Is there still 3+ gallons in the tank once it's on E and the warning light comes on? Why would it mislead me like that?
     
  2. Mar 17, 2011 at 8:31 PM
    #2
    whippersnapper02

    whippersnapper02 Well-Known Member

    Joined:
    Dec 20, 2009
    Member:
    #27905
    Messages:
    35,214
    Gender:
    Male
    First Name:
    Christian
    Yorba Linda, CA
    Vehicle:
    10 MGM TRD OR 4wd Auto DCSB
    Banks Monster Exhaust, Pop n Lock tailgate lock, Hook-Ups tie down brackets, USA Spec Ipod adaptor, WO seat covers, color matched grill with Grillcraft insert, Tuffy locking bed box
    Every vehicle has a reserve.

    Running it down empty is a nice way of killing your fuel pump since the fuel cools it.
     
  3. Mar 17, 2011 at 8:32 PM
    #3
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    104,108
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    3 gallons isnt alot. Thats about an inch of fuel at the bottom of the tank........
     
  4. Mar 17, 2011 at 8:32 PM
    #4
    08pretaco

    08pretaco Almost there

    Joined:
    Sep 26, 2008
    Member:
    #9502
    Messages:
    9,127
    Gender:
    Male
    First Name:
    Oliver
    az
    Vehicle:
    2014 Tundra 4x4 CM 5.7L SR5
    AFE pro dry s, Husky X-act Contour
    search please
     
  5. Mar 17, 2011 at 8:36 PM
    #5
    H James

    H James [OP] Member

    Joined:
    Mar 17, 2011
    Member:
    #53216
    Messages:
    13
    Gender:
    Male
    quick replies...thanks...so does that mean i can get another 50 miles or so out of it on the highway before the next gas station? My old Ranger had a 17 or 18 ga tank...don't remeber exactly. i would run it down to the warning light and then put in enough gas to make it within about a half gallon of what the manual said the fuel tank capacity was. not used to the difference, i guess.
     
  6. Mar 17, 2011 at 8:39 PM
    #6
    H James

    H James [OP] Member

    Joined:
    Mar 17, 2011
    Member:
    #53216
    Messages:
    13
    Gender:
    Male
    08pretaco...I did search, and I'm not gonna search anymore. That's the point of a discussion forum. I'm not new to these. If you don't like my post, don't answer.
     
  7. Mar 17, 2011 at 8:41 PM
    #7
    HondaGM

    HondaGM Roll Tide

    Joined:
    Oct 28, 2009
    Member:
    #25056
    Messages:
    5,774
    Gender:
    Male
    First Name:
    James
    South-Pole
    Vehicle:
    09 DC 4x4 Blown Honda VTEC V8
    trd exhaust,step bars,vent visors,bed lights,tailgate mod
    good answer;)
     
  8. Mar 17, 2011 at 8:46 PM
    #8
    That Dude Tim

    That Dude Tim Toyota Technician

    Joined:
    Mar 12, 2011
    Member:
    #52912
    Messages:
    544
    Gender:
    Male
    Elyria, OH
    Vehicle:
    11 TRD Sport 4x4 DCLB
    Goodyear DuraTrac 265/70R17, KMC XD Revolvers, ICON's, Firestone Ride Rites, Sockmonkey Decals, 35% tint both front doors, Braided Brake Lines, Removed Charcoal Filter, BHLM, Rear view camera switch, 7-pin in bumper, Lighted 4x4 switch, Rear diff breather, LED bulbs, ImMrYo bracket, mudflap delete, black Al.tube steps
    Hey don't worry about him. Anyway yes the little bit of reserve is left to cool the fuel pump. If not it would burn up and fail (costs alot of $$$ to replace). Its actually better to fill up at half tank bc when there is more room for air in the tank the gas turn into vapor quicker and can evapoarte easier. Plus the more fuel in the tank the cooler the fuel pump stays.
     
  9. Mar 17, 2011 at 8:55 PM
    #9
    H James

    H James [OP] Member

    Joined:
    Mar 17, 2011
    Member:
    #53216
    Messages:
    13
    Gender:
    Male
    Thanks...I guess I was wondering because I'm sometimes far away from gas stations. I do field work during the summer in some remote places in MT, SD, NV, etc...I was just wondering how long I have to get my butt to a gas station after that ominous light comes on below the fuel guage

    By the way...My truck came with Dunlop Grandtrek At20's. What do you think about those? Any experience? (I've heard they are crap, but haven't been off road yet to really try them out)
     
  10. Mar 17, 2011 at 8:59 PM
    #10
    HondaGM

    HondaGM Roll Tide

    Joined:
    Oct 28, 2009
    Member:
    #25056
    Messages:
    5,774
    Gender:
    Male
    First Name:
    James
    South-Pole
    Vehicle:
    09 DC 4x4 Blown Honda VTEC V8
    trd exhaust,step bars,vent visors,bed lights,tailgate mod
    there not very good offroad,but i have 20K on mine now,and they still look like new
     
  11. Mar 17, 2011 at 9:08 PM
    #11
    H James

    H James [OP] Member

    Joined:
    Mar 17, 2011
    Member:
    #53216
    Messages:
    13
    Gender:
    Male
    ya...i had Wildcat Radial A/T on my Ranger...about the only thing I'm gonna miss about that POS.
     
  12. Mar 17, 2011 at 9:21 PM
    #12
    That Dude Tim

    That Dude Tim Toyota Technician

    Joined:
    Mar 12, 2011
    Member:
    #52912
    Messages:
    544
    Gender:
    Male
    Elyria, OH
    Vehicle:
    11 TRD Sport 4x4 DCLB
    Goodyear DuraTrac 265/70R17, KMC XD Revolvers, ICON's, Firestone Ride Rites, Sockmonkey Decals, 35% tint both front doors, Braided Brake Lines, Removed Charcoal Filter, BHLM, Rear view camera switch, 7-pin in bumper, Lighted 4x4 switch, Rear diff breather, LED bulbs, ImMrYo bracket, mudflap delete, black Al.tube steps
    My truck came with them stock 265/65r17. Took them off at 500mi for Goodyear Duratrac 2655/70r17. Sold them to our used car depart. for $375 to get some of my money back. The sucked in the rain and terrible in snow (good thing for 4x4). Go to tirerack.com for some surveys on tires.
     
  13. Mar 17, 2011 at 9:25 PM
    #13
    StandingCow

    StandingCow Well-Known Member

    Joined:
    Apr 24, 2009
    Member:
    #16373
    Messages:
    1,804
    Gender:
    Male
    First Name:
    John
    NJ
    Vehicle:
    09 SR5 4x4 V6 access cab
    The gas gauge isn't an exact measure of how much fuel is in your tank, it is just a rough estimate. As others have said, I wouldn't run too long once your dummy light pops on, the fuel filter is cooled by the fuel.
     
  14. Mar 17, 2011 at 9:44 PM
    #14
    H James

    H James [OP] Member

    Joined:
    Mar 17, 2011
    Member:
    #53216
    Messages:
    13
    Gender:
    Male
    Thanks Dude Tim...I'm checking out the link right now
     
  15. Mar 19, 2011 at 5:59 AM
    #15
    tacomunchkin

    tacomunchkin Well-Known Member

    Joined:
    Aug 4, 2010
    Member:
    #41244
    Messages:
    63
    Gender:
    Male
    Navarre FL
    Vehicle:
    2010 TRD Offroad
    2010 4x4 Offroad TRD Crew cab 4.0 TRD Cat-Back exhaust CAI Avid offroad sliders and light bar PIAA 520 ATP lamps Leer bed shell
    There could also be an amount of unusable fuel trapped in the tank. Thats standard with aviation, done for sediment and water sumping. Could be a similar reason in vehicles.
     
  16. Mar 19, 2011 at 6:15 AM
    #16
    BassAckwardsDyl

    BassAckwardsDyl The Red Bull

    Joined:
    Jan 13, 2009
    Member:
    #12556
    Messages:
    688
    Gender:
    Male
    First Name:
    Dylan
    Kapolei, Hi
    Vehicle:
    07 Sport DC 4x4
    She is no longer the same Sport that I bought!!!
    As everyone said on here before, there is a little left over for reserve. I wouldn't make it a habit to get down that low. When you start hitting the bottom of the tank, you pull in sediment and anything else that is left in the tank and can wind up hurting your fuel system and eventually killing you MPG. I hate to have mine get past a quarter, never know when an emergency is going to come up in the middle of the night and you dont have time to stop at a gas station
     
  17. Mar 19, 2011 at 6:15 AM
    #17
    gjbonner

    gjbonner Well-Known Member

    Joined:
    Nov 1, 2008
    Member:
    #10420
    Messages:
    1,287
    Gender:
    Male
    First Name:
    Guy
    Northern Idaho
    Vehicle:
    07 Tacoma Off Road TRD
    Rhino Lined exterior,Fab Tech 6", 1.25" SpiderTrax spacers, Wheels painted Rustoleum Hammered Black, All Pro front plate bumper, Warn 9.5 ti winch, BHLM, Cig lighter constant on, Door beep toggle switch, Locker mod, Lock/unlock beeper Mod, Rear tailights smoked, 750w inverter with the outlets and on/off switch wired to rear of the console, Blacked out badges, blacked out rear bumper.
  18. Mar 19, 2011 at 9:32 AM
    #18
    fvtalon

    fvtalon Well-Known Member

    Joined:
    Aug 12, 2010
    Member:
    #41625
    Messages:
    234
    Gender:
    Male
    First Name:
    Mike
    Southern BC
    Vehicle:
    07 DC TRD/Yamaha
    285/65/18 BFG ATs on MKWs Leer Cap
    All I know is the only fuel pump listed on rock auto is $816 so I try not to run it low. I live in a rural area so I try never to get below a quarter tank because gas stations are few and far between with nothing available late at night. On the highway in the winter I try to keep it above a half tank because you never know when you could get stranded on a closed highway or in a ditch or something.

    If you spend a lot of time in the boondocks and run real close to empty on a regular basis you should look into some form of supplementary fuel storage. There was recently a post about tying down some NATO metal fuel cans in the box and there's aftermarket rear bumpers with fuel storage racks. You can get combination toolbox/tidy tank setups too.
     
  19. Mar 19, 2011 at 9:56 AM
    #19
    supralight

    supralight Well-Known Member

    Joined:
    Aug 20, 2009
    Member:
    #21479
    Messages:
    674
    Gender:
    Male
    First Name:
    Dan
    Earth
    Vehicle:
    2013 4Runner limited
    David K did a research on that same subject in here. Search for his name, I think the link for the QTY of fuel in tank VS needle is in his signature.
     
  20. Mar 19, 2011 at 10:16 AM
    #20
    David K

    David K Well-Known Member

    Joined:
    Jun 27, 2009
    Member:
    #18969
    Messages:
    9,054
    Gender:
    Male
    San Marcos, Alta California
    Vehicle:
    2010 4WD Off Road DC
    Differential Breather Mod Light Bar: 2 Hella 4000 HID, 1 Cibie Halogen. Bilstein 5100s Ride Rite Air Bags
    Yes... thanks!

    I am monitoring my gauge all the time... and it is very consistant...

    FULL: 21 Gallons
    3/4 Line: 16 Gallons (down 5)
    1/2 Line: 12 Gallons (down 9)
    1/4 Line: 8 Gallons (down 13)
    LIGHT ON: 4 Gallons (down 17)
    E LINE: 3 Gallons (down 18)

    The above figures have been consistant within 1/2 gallon +/-.
     
To Top