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spark it!

Discussion in '4 Cylinder' started by silverback, Nov 23, 2009.

  1. Nov 23, 2009 at 10:48 PM
    #1
    silverback

    silverback [OP] Well-Known Member

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    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.
    Looking to gain a couple of extra gpms. My Reg cab prerunner currently gets 22mph If I baby the whole tank. I want to replace the plugs. The truck currently has 54k miles, and Im not sure if the dealership replaced them when I bought the truck. What would you guys recommend and do they come pre-gapped. Just curious why dont these trucks get better mpgs. Gear ratio, weight? 4 bangers by law should get no less than 25mpg in my opinion. This is why I bought the 4 and not a 6 but hell sounds like I should have gotten the 6.
     
  2. Nov 23, 2009 at 10:56 PM
    #2
    BakoTruck

    BakoTruck Well-Known Member

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    Herbie Hancock
    Bakersfield, CA
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    05 PreRunner TRD
    Mostly stock for now, I have added a cb radio, various cheap mods and I plan on adding aftermarket wheels and other items in the future.

    There is a lot of reasons and causes to cause a drop in MPG's, winter gas mix is a big one.
    I would suggest replacing your plugs, they should be replaced every 30,000 miles, no matter if they are long life or not. Chances are, that they have not been replaced yet. And I would check the gap on them just to make sure, even if they say it is pre-gapped.
     
  3. Nov 24, 2009 at 4:27 PM
    #3
    Tacoyota

    Tacoyota senile member

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    North of Cali, South of Canada
    Vehicle:
    08 4wd
    4.56 gears, rear trutrac,DT header, 235/85r16 Duratracs, 2nd filter pulled, inter.wipers, Cruise control, Factory alum. whls/winter tires(2nd set), Afe pro Dry-S , Dumbo eared flaps cut down.
    lot of other thing could nibble mpg down. fyi i get 26mpg at 65 mph or so in the summer in my 4wd so you truck being 200 lb +/- should get a bit better.

    check o2 sensors ?
    tires to your taste, mine are at 38-40 unless I need snow traction
    air filter plugged? coulda sucked leaves in?
    how are you diff oils and trans oil?
    are you tires mud terrain vs asr?

    btw i lose 3 mpg to winter blend and weather, glad to get 22 in the fall/winter
     
  4. Nov 24, 2009 at 4:40 PM
    #4
    619Tacoma

    619Tacoma Baja bound

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    Call me Rocco
    San Diego, CA
    Vehicle:
    07 PreRunner SR5, Sport, 4dr
    - Billstein 5100's all around with OME 885 coil springs. - K&N Air Filter - HID Headlights & Fogs - Kenwood Stereo & Infinity Speakers - CB Radio, - Fog On Anytime mod - Anti Tailgate theft mod. More comming...
    Spark it up!!!! :rasta:
     
  5. Nov 24, 2009 at 4:49 PM
    #5
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    FlimFlubberJAM
    Tenoe, AZ
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    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    What year is your truck?
     
  6. Nov 24, 2009 at 4:51 PM
    #6
    Tacoyota

    Tacoyota senile member

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    North of Cali, South of Canada
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    08 4wd
    4.56 gears, rear trutrac,DT header, 235/85r16 Duratracs, 2nd filter pulled, inter.wipers, Cruise control, Factory alum. whls/winter tires(2nd set), Afe pro Dry-S , Dumbo eared flaps cut down.
    I didnt know they made reg cab prerunners, his says 2006 in the photos
     
  7. Nov 25, 2009 at 3:15 PM
    #7
    silverback

    silverback [OP] Well-Known Member

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    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.
    Yea its a 2006 prerunner sr5. I am currently running the toyo country all terrains. I havent checked the O2 sensors yet and I will replace the plugs. As far as the lubes im sure its all stock fluid.
     
  8. Nov 25, 2009 at 6:40 PM
    #8
    uood8

    uood8 If You Search...You Shall Find.

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    Greensboro, NC
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    '16 Sr5 4x4 DCSB
    Pretty much stock
    the 4cyl shouldn't need the plugs changed till like 110-115k miles according to the service schedule. I only get like 19mpg per highway with my 4cyl 4x4 because i'm always running 70+ mph...and i know nothing is wrong with my truck because it only has 8k miles on it and its always been like that.
     
  9. Nov 25, 2009 at 7:39 PM
    #9
    HondaGM

    HondaGM Roll Tide

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    James
    South-Pole
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    09 DC 4x4 Blown Honda VTEC V8
    trd exhaust,step bars,vent visors,bed lights,tailgate mod
    ive heard the 4.0 gets better mpg than the 4cyl,mine is 09 dc 4x4 sport....gets 22.5 with a light foot.
     
  10. Nov 25, 2009 at 8:11 PM
    #10
    uood8

    uood8 If You Search...You Shall Find.

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    Greensboro, NC
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    '16 Sr5 4x4 DCSB
    Pretty much stock
    Well kind of, however if you drove both trucks exactly the same at 55mph then the 4cyl would yield better mpg. The 4cyl will always consume less fuel, but if both trucks are going 75 down the highway mine will turn 3k rpms while gearing could allow the 6cyl to turn 2500 rpms, therefore making the 6cyl consume less fuel in that situtation.
     
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