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

What can be wrong!

Discussion in '4 Cylinder' started by silverback, Oct 22, 2011.

  1. Oct 22, 2011 at 1:22 PM
    #1
    silverback

    silverback [OP] Well-Known Member

    Joined:
    Oct 23, 2009
    Member:
    #24802
    Messages:
    445
    Gender:
    Male
    First Name:
    Jason
    central CA
    Vehicle:
    2006 Prerunner SR5
    painted door handles, bilstein 5100's front and back, K&N air filter. Precision power component speakers and Kenwood deck.
    Well i filled up my tank the other day and combination city and highway driving if my tank is 21 gallons im getting between 290 and 300 miles to the tank.

    Simple math = 14 mpg. WTF! on a 4 cylinder! I mean i put 17 inch wheels on instead of the 16 inch stealies and slightly larger AT tires but really? I might as well drive a full size v8. Any ideas on what to check before I trade this thing in. Can't have this with $3.80 gallon and especially a 4 banger.

    Its always been around this area. Even with the stock tires. Fyi i have noticed for some time what sounds like a slight exhaust leak when driving next to a wall along the road but I cant see anything when im under there.
     
  2. Oct 22, 2011 at 2:12 PM
    #2
    TacomaBuzz

    TacomaBuzz Well-Known Member

    Joined:
    Mar 7, 2010
    Member:
    #32764
    Messages:
    1,159
    Gender:
    Male
    First Name:
    Matt
    CT
    Vehicle:
    2014 RegCab 4x4 TX Special Edition
    Sirius, Bugflector,back-rack, stepsides.
    Something is way off, I've been getting a consistent 25+ Mpg. AndrewFalk gets around 26-27 Mpg. Do you need a tune-up? I would go back to stock tires/rims if gas mileage is important and consider getting a base 2.7L Tacoma. You are carrying around extra weight and drag due to having the same suspension and height as the 4x4's.
     
  3. Oct 22, 2011 at 2:17 PM
    #3
    friction

    friction Well-Known Member

    Joined:
    Jan 26, 2010
    Member:
    #30064
    Messages:
    1,798
    Gender:
    Male
    Charleston, SC
    Vehicle:
    '08 4X4 RC SR5
    OEM Cruise, 5100s @.85, Century Ultra shell, TRD covers, TRD skid.
    Wait. Are you actually figuring based on a trip reading or are you assuming the "E" line is the full 21 gallons? Even when the gas light comes on we have around 4 (or more) gallons left...
     
  4. Oct 22, 2011 at 2:18 PM
    #4
    Yoytoda

    Yoytoda The Little Truck That Could

    Joined:
    Oct 2, 2009
    Member:
    #23690
    Messages:
    4,950
    Gender:
    Male
    First Name:
    Roland
    Big Bear,CA / Upstate NY(Saratoga)
    Vehicle:
    2010 Tacoma Regular Cab 4x4
    completely stock

    you cant divide the size of the tank by the miles... you have to divide the miles by how many gallons you put in...


    21 gallons is the entire tank. usually i only put in 17 gallons when the light comes on and get 350 miles which is about 20mpg average



    there is not much difference in the mileage of a base and a prerunner. the 4.10 gearing in a prerunner compensates for the tire size and height.
     
  5. Oct 22, 2011 at 3:58 PM
    #5
    silverback

    silverback [OP] Well-Known Member

    Joined:
    Oct 23, 2009
    Member:
    #24802
    Messages:
    445
    Gender:
    Male
    First Name:
    Jason
    central CA
    Vehicle:
    2006 Prerunner SR5
    painted door handles, bilstein 5100's front and back, K&N air filter. Precision power component speakers and Kenwood deck.
    Ill give it another shot. But I know its pretty darn low. Id except 20mpg.
     
  6. Oct 22, 2011 at 4:01 PM
    #6
    silverback

    silverback [OP] Well-Known Member

    Joined:
    Oct 23, 2009
    Member:
    #24802
    Messages:
    445
    Gender:
    Male
    First Name:
    Jason
    central CA
    Vehicle:
    2006 Prerunner SR5
    painted door handles, bilstein 5100's front and back, K&N air filter. Precision power component speakers and Kenwood deck.
    Ive got 72k miles. Bought with 53k. Maybe ill try a tuneup. Already replaced the plugs and the air filter and just changed the oil last week. Ill take it in let them run it and see.
     
  7. Oct 22, 2011 at 7:46 PM
    #7
    mech160

    mech160 Active Member

    Joined:
    Oct 22, 2011
    Member:
    #65675
    Messages:
    36
    Gender:
    Male
    50th
    Vehicle:
    1995.5 Tacoma
    Tried the "hot rod/heavy mod" scene for decades. Can't beat a clean, all original, factory specs vehicle.
    Top off tank and "zero" the trip meter. Next time you fill, top off tank again and note both mileage on trip meter along with amount of gallons it took to top off. (I usually fill until gas pump handle automatically shuts off, and then slowly squeeze handle again until it shuts off again) Divide trip mileage by gallons added; you don't have to wait until you are close to empty or even half. 125 miles divided by 5 gallons = 25 mpg
     
  8. Oct 22, 2011 at 8:51 PM
    #8
    AndrewFalk

    AndrewFalk Science!

    Joined:
    May 8, 2010
    Member:
    #36740
    Messages:
    2,053
    Gender:
    Male
    The North East
    Vehicle:
    2010 5 speed 5 lug
    :)
    Winner. ;)
     
  9. Oct 22, 2011 at 8:56 PM
    #9
    Yoytoda

    Yoytoda The Little Truck That Could

    Joined:
    Oct 2, 2009
    Member:
    #23690
    Messages:
    4,950
    Gender:
    Male
    First Name:
    Roland
    Big Bear,CA / Upstate NY(Saratoga)
    Vehicle:
    2010 Tacoma Regular Cab 4x4
    completely stock
    but you know what they say about assuming. when you assume it makes an
    ASS of U and ME

    for all we know he fills up when he hits 1/4 tank. :notsure:
     
  10. Oct 22, 2011 at 9:02 PM
    #10
    AndrewFalk

    AndrewFalk Science!

    Joined:
    May 8, 2010
    Member:
    #36740
    Messages:
    2,053
    Gender:
    Male
    The North East
    Vehicle:
    2010 5 speed 5 lug
    :)
    300 * (6.02 x 10^23) :p
     
  11. Oct 22, 2011 at 9:27 PM
    #11
    Yoytoda

    Yoytoda The Little Truck That Could

    Joined:
    Oct 2, 2009
    Member:
    #23690
    Messages:
    4,950
    Gender:
    Male
    First Name:
    Roland
    Big Bear,CA / Upstate NY(Saratoga)
    Vehicle:
    2010 Tacoma Regular Cab 4x4
    completely stock
    thats pretty ignorant to say...

    if you are getting 10mpg are you gonna say eh fuck it its a truck or would you be concerned?

    its a good idea to keep track of mpgs to make sure your truck is running right. its also not women like to want the best mileage we can get...


    Edit: if you dont care about mpgs you shoulda bought a 1 ton dodge with a hemi
     
  12. Oct 26, 2011 at 12:59 AM
    #12
    4Wheelin4Banger

    4Wheelin4Banger Longtime Toyman

    Joined:
    Jun 15, 2011
    Member:
    #58306
    Messages:
    6,712
    Gender:
    Male
    First Name:
    Randy
    Ferntucky, NV Halfway between Reno & Falabama
    Vehicle:
    2011 4x4 Access Cab Silver State Edition
    3" OME lift 885s & Dakars riding on 33" KM2s Click the sig pic to see the build thread .
    What can be wrong?
    Operator error
     
  13. Oct 27, 2011 at 11:15 AM
    #13
    silverback

    silverback [OP] Well-Known Member

    Joined:
    Oct 23, 2009
    Member:
    #24802
    Messages:
    445
    Gender:
    Male
    First Name:
    Jason
    central CA
    Vehicle:
    2006 Prerunner SR5
    painted door handles, bilstein 5100's front and back, K&N air filter. Precision power component speakers and Kenwood deck.
    Jesus your right my truck is so severely modified I should have though twice about posting. I guess running 275 vs 265 is intense.
     
  14. Oct 27, 2011 at 11:18 AM
    #14
    silverback

    silverback [OP] Well-Known Member

    Joined:
    Oct 23, 2009
    Member:
    #24802
    Messages:
    445
    Gender:
    Male
    First Name:
    Jason
    central CA
    Vehicle:
    2006 Prerunner SR5
    painted door handles, bilstein 5100's front and back, K&N air filter. Precision power component speakers and Kenwood deck.
    lead foot? Ill accept that answer.
     
  15. Oct 27, 2011 at 11:20 AM
    #15
    friction

    friction Well-Known Member

    Joined:
    Jan 26, 2010
    Member:
    #30064
    Messages:
    1,798
    Gender:
    Male
    Charleston, SC
    Vehicle:
    '08 4X4 RC SR5
    OEM Cruise, 5100s @.85, Century Ultra shell, TRD covers, TRD skid.
    Seriously, are you calculating it correctly? Look at a few of the first posts...reset the trip when you top off the tank, and divide the trip by the number of gallons you refill with.
     
  16. Oct 27, 2011 at 11:21 AM
    #16
    Brunes

    Brunes abides. Moderator

    Joined:
    May 31, 2008
    Member:
    #7011
    Messages:
    17,652
    Gender:
    Male
    First Name:
    Rotorhead
    DC or New Jersey - Depends on the day....
    Vehicle:
    08 Red/Graphite and Satin Black
    Inside: Tint, Wet Okole 1/2 Piped Red/Black Covers, Black Weathertech Digital Fit Mats, URD Short Throw w/ TWM Weighted Knob, USA Spec iPod adapter. Outside: 4300K Retro w/ Angel Eyes and Red Shrouds, 5000K Blazer Fog Light Retrofit, Debadge, Bed Locking Handle, Satin Black Rims Performance: TRD/Steigmeier Blower w/ 2.7 Pulley. 668 Injectors and 320 LPH AEM Fuel pump. URD UCON and 7th Injector. DTLT Headers, URD Y-Pipe, Wicked Flow Muffler. Suspension: Both: OME Shocks Front: 886X's and TC UCAs Rear: Dakars Armor: Relentless Front Bumper Relentless High Clearance Rear w/ Tire/Rotopax Swing Out Relentless Front, Mid, and TCase skids BAMF Diff Skid Recovery and Spares: Fullsize Spare Tire 2x2 gal Rotopax 1x1 gal Rotopax 1x1 gal Water Rotopax Warn 9.5XP-S Winch Hi-Lift Extreme 60" Ironman Off-Road Recovery Kit
    It does change the calculation...
     
  17. Oct 27, 2011 at 5:25 PM
    #17
    silverback

    silverback [OP] Well-Known Member

    Joined:
    Oct 23, 2009
    Member:
    #24802
    Messages:
    445
    Gender:
    Male
    First Name:
    Jason
    central CA
    Vehicle:
    2006 Prerunner SR5
    painted door handles, bilstein 5100's front and back, K&N air filter. Precision power component speakers and Kenwood deck.

    I did but it takes time to drive the tank down my friend. Im almost there!
     
  18. Oct 27, 2011 at 5:28 PM
    #18
    silverback

    silverback [OP] Well-Known Member

    Joined:
    Oct 23, 2009
    Member:
    #24802
    Messages:
    445
    Gender:
    Male
    First Name:
    Jason
    central CA
    Vehicle:
    2006 Prerunner SR5
    painted door handles, bilstein 5100's front and back, K&N air filter. Precision power component speakers and Kenwood deck.

    I imagine, thats why ill give up a few for the curve.
     
  19. Nov 29, 2011 at 2:01 AM
    #19
    Stout890

    Stout890 Well-Known Member

    Joined:
    May 8, 2011
    Member:
    #56287
    Messages:
    511
    Gender:
    Male
    First Name:
    Jason
    Rosamond ca
    Vehicle:
    99 prerunner sr5
    HID head lights, fagtech coil overs and an AAL, gay ass 2 inch body lift (soon to be removed) taneau cover, k&n intake, soon to have an axle swap with a E locker
    iv been getting 14mpg to the tank with my 3rz also....i cant figure it out.
    im running 31" tires and 15" wheels. and iv always thought it sounded like i have an exhaust leak also. im almost done with this tank, so when i fill up ill calculate again.
     
  20. Nov 29, 2011 at 6:55 AM
    #20
    saugus

    saugus Well-Known Member

    Joined:
    Sep 3, 2011
    Member:
    #62820
    Messages:
    340
    Gender:
    Male
    Vehicle:
    2006
    Are you zeroing out at the point when you fill up while filling to the point when the pump stops (no topping) and then repeating that process on the next fill up while taking the mileage and dividing by the number of gallons and then multiplying that number by ~1.148 to account for 31" (> 2" radius)?
     
To Top