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

Drop in fuel mileage.

Discussion in 'Performance and Tuning' started by luk8272, Feb 6, 2009.

  1. Feb 6, 2009 at 7:09 AM
    #1
    luk8272

    luk8272 [OP] Poodoo

    Joined:
    Feb 24, 2008
    Member:
    #4929
    Messages:
    5,832
    Gender:
    Male
    First Name:
    Lucas
    Kaplan, Louisiana
    Vehicle:
    07 Silver4dr. 4x4, V6 Shortbed
    5% Tint, Bug flector, vent Visors, Removed secondary air filter, Rear Spring TSB w/ Wheeler's Add A Leaf HD Pack, Icon 2.0 rear shocks, Toytec 3" lift up front with Total Chaos UCA's, Debadged, Billet Grille,TRD Offroad rims/17x9 Pro comp 6001 rims, Duratracs 265/75/16 or 285/70/17, Fog light anytime mod, Tailgate hose clamp mod, Pro-dry AFE filter. Extended Differential Breather, ABS on/off, 6000k LEDs from CSJumper, heads/fogs, ScanguageII, Devil horns, Devil horns on third brake light, Mounted 60" Highlift, Mounted Tool Box, Wet Okole Front/Rear Seat Covers, TW sticker, Midland Handheld CB,Painted engine cover, Revenge Fab Sliders, ARE Topper, Weather tech Floorliners.
    All the numbers here have been corrected for tires. I have a 3" lift with 33" tires. 4dr V6 4x4. As per Janster the lift and tires have been on for a while and this is not related to that.

    On my drive to work today I used 6.5 gals and went 101 miles, that comes to 15.5 average mpg. Using my scanguage, At 70mph-13.3mpg-1976rpm-82.6hp. This is very unusual for my truck normally seeing 16+mpg at 70. Now at slower speeds it was normal 48mph-23mpg-1376rpm-33hp. Could some of yall chime in and let me know what yall are seeing. Thanks.

    My air filter is clean, tires are at proper psi. If it were the fuel filter wouldn't I see the low mpg at all speeds?
     
  2. Feb 6, 2009 at 7:13 AM
    #2
    Ghost96Romeo

    Ghost96Romeo What is the Search Tab for????

    Joined:
    Oct 24, 2008
    Member:
    #10228
    Messages:
    1,963
    Gender:
    Male
    Kyle, TX
    Vehicle:
    06 TRD Off-Road D-Cab
    3" Pro-Comp Suspension Lift AAL Rear w/TSB, All-Pro Plate Bumper, Lightforce 240 Blitz lights, Lund Genesis Roll-top Bed cover, K&N Filters, Spidertrax Wheel spacers, Built-by-Me Rock Sliders, Jeep Tow-Hook, Black Leather seats, 48"Hi-Lift Jack mounted in the bed, Blacked out TRD Rims, BHLM, FLM..... and Awesomeness
    Dry air?
     
  3. Feb 6, 2009 at 7:20 AM
    #3
    luk8272

    luk8272 [OP] Poodoo

    Joined:
    Feb 24, 2008
    Member:
    #4929
    Messages:
    5,832
    Gender:
    Male
    First Name:
    Lucas
    Kaplan, Louisiana
    Vehicle:
    07 Silver4dr. 4x4, V6 Shortbed
    5% Tint, Bug flector, vent Visors, Removed secondary air filter, Rear Spring TSB w/ Wheeler's Add A Leaf HD Pack, Icon 2.0 rear shocks, Toytec 3" lift up front with Total Chaos UCA's, Debadged, Billet Grille,TRD Offroad rims/17x9 Pro comp 6001 rims, Duratracs 265/75/16 or 285/70/17, Fog light anytime mod, Tailgate hose clamp mod, Pro-dry AFE filter. Extended Differential Breather, ABS on/off, 6000k LEDs from CSJumper, heads/fogs, ScanguageII, Devil horns, Devil horns on third brake light, Mounted 60" Highlift, Mounted Tool Box, Wet Okole Front/Rear Seat Covers, TW sticker, Midland Handheld CB,Painted engine cover, Revenge Fab Sliders, ARE Topper, Weather tech Floorliners.
    I traveled in both directions and achieved the same readings, barely any wind. Temp today was 54* maybe a little colder as I left at 2:30am.
     
  4. Feb 6, 2009 at 7:27 AM
    #4
    wiscdave

    wiscdave Lets Do It!

    Joined:
    Mar 20, 2008
    Member:
    #5392
    Messages:
    2,547
    Gender:
    Male
    Northern Wisconsin
    Vehicle:
    Tundra Rock Warrior
    Past ride - 3" OME 885s&Shocks/ TSB 1.5AAL/ AX184 Rims 285 Firestone destination ATs/ 2 Shallow mount P310s in Supercrew Box - Punch 601s, Beefed up Hunter Brush guard, Tint, Fog light mod, AFE Drop in, AC and Fog light mods, scangauge
    how cold was it?
     
  5. Feb 6, 2009 at 7:30 AM
    #5
    luk8272

    luk8272 [OP] Poodoo

    Joined:
    Feb 24, 2008
    Member:
    #4929
    Messages:
    5,832
    Gender:
    Male
    First Name:
    Lucas
    Kaplan, Louisiana
    Vehicle:
    07 Silver4dr. 4x4, V6 Shortbed
    5% Tint, Bug flector, vent Visors, Removed secondary air filter, Rear Spring TSB w/ Wheeler's Add A Leaf HD Pack, Icon 2.0 rear shocks, Toytec 3" lift up front with Total Chaos UCA's, Debadged, Billet Grille,TRD Offroad rims/17x9 Pro comp 6001 rims, Duratracs 265/75/16 or 285/70/17, Fog light anytime mod, Tailgate hose clamp mod, Pro-dry AFE filter. Extended Differential Breather, ABS on/off, 6000k LEDs from CSJumper, heads/fogs, ScanguageII, Devil horns, Devil horns on third brake light, Mounted 60" Highlift, Mounted Tool Box, Wet Okole Front/Rear Seat Covers, TW sticker, Midland Handheld CB,Painted engine cover, Revenge Fab Sliders, ARE Topper, Weather tech Floorliners.
    I tanked up at a place that I use when I pass by it. I normaly avoid stations that use ethonal this one does but I still have never gotten these low numbers. When I avoid the ethonal I get 19+ mpg with the ethonal I get 17mpg on average.
     
  6. Feb 6, 2009 at 9:11 AM
    #6
    Ghost96Romeo

    Ghost96Romeo What is the Search Tab for????

    Joined:
    Oct 24, 2008
    Member:
    #10228
    Messages:
    1,963
    Gender:
    Male
    Kyle, TX
    Vehicle:
    06 TRD Off-Road D-Cab
    3" Pro-Comp Suspension Lift AAL Rear w/TSB, All-Pro Plate Bumper, Lightforce 240 Blitz lights, Lund Genesis Roll-top Bed cover, K&N Filters, Spidertrax Wheel spacers, Built-by-Me Rock Sliders, Jeep Tow-Hook, Black Leather seats, 48"Hi-Lift Jack mounted in the bed, Blacked out TRD Rims, BHLM, FLM..... and Awesomeness
    For some reason vehicles get worse gas mileage in colder weather with dry air. Something about the gas mixture not burning completley I think.

    Chris4x4 has some knowledge on the matter I believe.
     
  7. Feb 6, 2009 at 9:14 AM
    #7
    98tacoma27

    98tacoma27 :POOPCORN: Staff Member

    Joined:
    Dec 18, 2008
    Member:
    #11714
    Messages:
    48,163
    Gender:
    Male
    First Name:
    Ben
    Beech Creek
    Vehicle:
    05 Tundra SR5, 88 SR5 PU, 98 TRD OR (CRUSHED)
    5100's all on fours
    Could just be a flook. Avoid the ethanol at all costs. It is not an efficient fuel source.
     
  8. Feb 6, 2009 at 9:15 AM
    #8
    Janster

    Janster Old & Forgetful

    Joined:
    Mar 25, 2007
    Member:
    #1138
    Messages:
    13,813
    Gender:
    Female
    First Name:
    Jandy
    Lancaster, PA
    Vehicle:
    2007 4.0L 4x4 TRD Sport Access Cab A
    Advantage Torza top (tri-fold), Husky floor mats, RuffTuff seat covers, C2C hood struts, Homelink mirror, USA Spec PA15-Toy (120gig Classic & 8gig nano), Garmin Nuvi 660, Protecta Bed mat, Pop-n-lock, TSB Springs, Scangauge II, Heated drivers seat, Fumoto drain valve, Aries pushbar, PIAA 540 fog lights, Hood scoop grahics, Flowmaster 50 series dual catback exhaust, RainX Latitude windshield wipers, Husky rear floor liner (ontop of folded down seats). Console Vault.
    You have 3" lift and 33" tires...gas mileage is gonna drop. That should be a no-brainer.
     
  9. Feb 6, 2009 at 9:17 AM
    #9
    chris4x4

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

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    104,110
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    Colder air = denser air, thus the ECU adds fuel to maintain the propper air/fuel ratio. Cold moist air (high humidity) has even more oxygen (Water is H2O), so less mpg can be expected from it.
     
  10. Feb 6, 2009 at 9:33 AM
    #10
    Ghost96Romeo

    Ghost96Romeo What is the Search Tab for????

    Joined:
    Oct 24, 2008
    Member:
    #10228
    Messages:
    1,963
    Gender:
    Male
    Kyle, TX
    Vehicle:
    06 TRD Off-Road D-Cab
    3" Pro-Comp Suspension Lift AAL Rear w/TSB, All-Pro Plate Bumper, Lightforce 240 Blitz lights, Lund Genesis Roll-top Bed cover, K&N Filters, Spidertrax Wheel spacers, Built-by-Me Rock Sliders, Jeep Tow-Hook, Black Leather seats, 48"Hi-Lift Jack mounted in the bed, Blacked out TRD Rims, BHLM, FLM..... and Awesomeness
    Bingo Baby!!!! Here to save my ass!:D:D:D Thanks Chris
     
  11. Feb 6, 2009 at 9:56 AM
    #11
    luk8272

    luk8272 [OP] Poodoo

    Joined:
    Feb 24, 2008
    Member:
    #4929
    Messages:
    5,832
    Gender:
    Male
    First Name:
    Lucas
    Kaplan, Louisiana
    Vehicle:
    07 Silver4dr. 4x4, V6 Shortbed
    5% Tint, Bug flector, vent Visors, Removed secondary air filter, Rear Spring TSB w/ Wheeler's Add A Leaf HD Pack, Icon 2.0 rear shocks, Toytec 3" lift up front with Total Chaos UCA's, Debadged, Billet Grille,TRD Offroad rims/17x9 Pro comp 6001 rims, Duratracs 265/75/16 or 285/70/17, Fog light anytime mod, Tailgate hose clamp mod, Pro-dry AFE filter. Extended Differential Breather, ABS on/off, 6000k LEDs from CSJumper, heads/fogs, ScanguageII, Devil horns, Devil horns on third brake light, Mounted 60" Highlift, Mounted Tool Box, Wet Okole Front/Rear Seat Covers, TW sticker, Midland Handheld CB,Painted engine cover, Revenge Fab Sliders, ARE Topper, Weather tech Floorliners.

    yeah but the lift is far from new. Been on the truck almost a year this is something I noticed today. As the numbers I have been posting are with the lift and tires.

    Thanks Chris and Ghost. I will be keeping an eye on it.
     
  12. Feb 6, 2009 at 10:03 AM
    #12
    Janster

    Janster Old & Forgetful

    Joined:
    Mar 25, 2007
    Member:
    #1138
    Messages:
    13,813
    Gender:
    Female
    First Name:
    Jandy
    Lancaster, PA
    Vehicle:
    2007 4.0L 4x4 TRD Sport Access Cab A
    Advantage Torza top (tri-fold), Husky floor mats, RuffTuff seat covers, C2C hood struts, Homelink mirror, USA Spec PA15-Toy (120gig Classic & 8gig nano), Garmin Nuvi 660, Protecta Bed mat, Pop-n-lock, TSB Springs, Scangauge II, Heated drivers seat, Fumoto drain valve, Aries pushbar, PIAA 540 fog lights, Hood scoop grahics, Flowmaster 50 series dual catback exhaust, RainX Latitude windshield wipers, Husky rear floor liner (ontop of folded down seats). Console Vault.
    You should've mentioned that in your first post.
     
  13. Feb 6, 2009 at 10:30 AM
    #13
    luk8272

    luk8272 [OP] Poodoo

    Joined:
    Feb 24, 2008
    Member:
    #4929
    Messages:
    5,832
    Gender:
    Male
    First Name:
    Lucas
    Kaplan, Louisiana
    Vehicle:
    07 Silver4dr. 4x4, V6 Shortbed
    5% Tint, Bug flector, vent Visors, Removed secondary air filter, Rear Spring TSB w/ Wheeler's Add A Leaf HD Pack, Icon 2.0 rear shocks, Toytec 3" lift up front with Total Chaos UCA's, Debadged, Billet Grille,TRD Offroad rims/17x9 Pro comp 6001 rims, Duratracs 265/75/16 or 285/70/17, Fog light anytime mod, Tailgate hose clamp mod, Pro-dry AFE filter. Extended Differential Breather, ABS on/off, 6000k LEDs from CSJumper, heads/fogs, ScanguageII, Devil horns, Devil horns on third brake light, Mounted 60" Highlift, Mounted Tool Box, Wet Okole Front/Rear Seat Covers, TW sticker, Midland Handheld CB,Painted engine cover, Revenge Fab Sliders, ARE Topper, Weather tech Floorliners.

    I fixed to for you!:D
     
  14. Feb 7, 2009 at 1:25 PM
    #14
    2009tacomav6

    2009tacomav6 Well-Known Member

    Joined:
    Dec 6, 2008
    Member:
    #11323
    Messages:
    385
    Gender:
    Male
    phx AZ
    Vehicle:
    2012 4x4
    TRD SC TRD Cat Back KMC 17x9 Addicts
    maybe an older batch of gas. I know my first tank of gas on my truck myst have been sitting in there for a bit as the mileage was 2 3- lower than normal. I attributed it to bad gas
     
  15. Mar 2, 2009 at 6:28 PM
    #15
    luk8272

    luk8272 [OP] Poodoo

    Joined:
    Feb 24, 2008
    Member:
    #4929
    Messages:
    5,832
    Gender:
    Male
    First Name:
    Lucas
    Kaplan, Louisiana
    Vehicle:
    07 Silver4dr. 4x4, V6 Shortbed
    5% Tint, Bug flector, vent Visors, Removed secondary air filter, Rear Spring TSB w/ Wheeler's Add A Leaf HD Pack, Icon 2.0 rear shocks, Toytec 3" lift up front with Total Chaos UCA's, Debadged, Billet Grille,TRD Offroad rims/17x9 Pro comp 6001 rims, Duratracs 265/75/16 or 285/70/17, Fog light anytime mod, Tailgate hose clamp mod, Pro-dry AFE filter. Extended Differential Breather, ABS on/off, 6000k LEDs from CSJumper, heads/fogs, ScanguageII, Devil horns, Devil horns on third brake light, Mounted 60" Highlift, Mounted Tool Box, Wet Okole Front/Rear Seat Covers, TW sticker, Midland Handheld CB,Painted engine cover, Revenge Fab Sliders, ARE Topper, Weather tech Floorliners.
    Well I am back from work been in for about a week. Use all the gas in the tank until the light came on twice. I know that is bad practice but I have 2 new fuel filters for incase. I didn't need them my fuel is back to normal as of this new tank. The numbers are right back to where they used to be. After I used all the bad gas the first fill up was better but not as good as norm. But this here fill up was down right exciting even my buddy who was riding with me was like damn look 26.5 mpg at 42mph. Previously he saw 42mph and 13mpg.
     
  16. Mar 2, 2009 at 6:35 PM
    #16
    2009tacomav6

    2009tacomav6 Well-Known Member

    Joined:
    Dec 6, 2008
    Member:
    #11323
    Messages:
    385
    Gender:
    Male
    phx AZ
    Vehicle:
    2012 4x4
    TRD SC TRD Cat Back KMC 17x9 Addicts
    good to hear
     
  17. Mar 3, 2009 at 7:04 AM
    #17
    TRYMY4.0

    TRYMY4.0 SuperMod of IA.com

    Joined:
    Jun 15, 2008
    Member:
    #7330
    Messages:
    16
    Gender:
    Male
    Exactly. Also, colder air is more dense meaning your truck is having a harder time pushing through it all which = in more gas consumption.

    -Ant.
     
To Top