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

91 octane?

Discussion in '5 Lug' started by adam2180, Jan 8, 2012.

  1. Jan 8, 2012 at 4:53 PM
    #1
    adam2180

    adam2180 [OP] Well-Known Member

    Joined:
    Dec 22, 2011
    Member:
    #69210
    Messages:
    96
    Gender:
    Male
    Dartmouth NS Canada
    Vehicle:
    2010 SR5 Double Cab
    Is it worth while using 91 octane gas in my 5 lug?
     
  2. Jan 8, 2012 at 7:29 PM
    #2
    Joels98taco

    Joels98taco Well-Known Member

    Joined:
    Mar 10, 2011
    Member:
    #52782
    Messages:
    2,249
    Gender:
    Male
    First Name:
    joel
    chino hills
    Vehicle:
    98 5 lug tacoma
    fabtech 3" spindles, icon aal, 10" bilstein 7100 rear shocks, daystar coil spacers, AFE Pro Dry-s drop in filter, sony head unit, 2 12" pioneer subs, pioneer 6.5s all around, custom 1.25 lift shackles, custom lower ball joint brackets fabbed by me
    i doubt it will make much of a diference with such a small engine with no upgrades. but try it if you want? :confused:
     
  3. Jan 8, 2012 at 7:32 PM
    #3
    humanoid

    humanoid bite me

    Joined:
    Jun 27, 2007
    Member:
    #1932
    Messages:
    2,744
    Gender:
    Male
    Sunny SoCal
    Vehicle:
    I had a '99 Xtra Cab PreRunner SR5 V6
    It wouldn't hurt, at least your wallet will be a bit lighter.
     
  4. Jan 9, 2012 at 12:00 PM
    #4
    adam2180

    adam2180 [OP] Well-Known Member

    Joined:
    Dec 22, 2011
    Member:
    #69210
    Messages:
    96
    Gender:
    Male
    Dartmouth NS Canada
    Vehicle:
    2010 SR5 Double Cab
    I have always used it because I have been told its cleaner gas.
     
  5. Jan 9, 2012 at 12:01 PM
    #5
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

    Joined:
    Dec 18, 2008
    Member:
    #11714
    Messages:
    48,386
    Gender:
    Male
    First Name:
    Ben
    Beech Creek
    Vehicle:
    05 Tundra SR5 (+250k AND COUNTING), 88 SR5 PU (SOLD), 98 TRD OR (CRUSHED)
    5100's all on fours
    I've got ocean front property in Arizona I'd like to sell ya. ;)
     
  6. Jan 9, 2012 at 2:21 PM
    #6
    adam2180

    adam2180 [OP] Well-Known Member

    Joined:
    Dec 22, 2011
    Member:
    #69210
    Messages:
    96
    Gender:
    Male
    Dartmouth NS Canada
    Vehicle:
    2010 SR5 Double Cab
    I'm listening.......
     
  7. Jan 15, 2012 at 4:48 PM
    #7
    adam2180

    adam2180 [OP] Well-Known Member

    Joined:
    Dec 22, 2011
    Member:
    #69210
    Messages:
    96
    Gender:
    Male
    Dartmouth NS Canada
    Vehicle:
    2010 SR5 Double Cab
    I filled it up with regular and didn't notice any difference.
     
  8. Jan 16, 2012 at 1:11 PM
    #8
    JDCPA

    JDCPA Well-Known Member

    Joined:
    Nov 15, 2008
    Member:
    #10777
    Messages:
    933
    Gender:
    Male
    First Name:
    Jim
    SW FL
    Vehicle:
    09 5 Lug Access Cab SR5
    Curt Hitch and etrailer.com wiring harness.
    The computer on the 4.0 engine differentiates between octane and adjusts its performance accordingly. THe 2.7's computer does not. Any octane in excess of 87 is wasted money.
     
  9. Jan 16, 2012 at 1:40 PM
    #9
    adam2180

    adam2180 [OP] Well-Known Member

    Joined:
    Dec 22, 2011
    Member:
    #69210
    Messages:
    96
    Gender:
    Male
    Dartmouth NS Canada
    Vehicle:
    2010 SR5 Double Cab
    Yup, I'm a believer... Or a non-believer, you know what I mean.
     
  10. Jan 22, 2012 at 8:06 PM
    #10
    emt49126

    emt49126 Member

    Joined:
    Jan 16, 2012
    Member:
    #70778
    Messages:
    21
    Gender:
    Male
    First Name:
    Rodney
    Kentucky
    Vehicle:
    Tacoma
    Thank you. I put high octane in the other day. Needless to say, I complain that it costed me 30.00 for less then 9 gallons. What is your thoughts on gas additives?:confused:
     
  11. Jan 22, 2012 at 10:19 PM
    #11
    the.sight.picture

    the.sight.picture Well-Known Member

    Joined:
    Jan 22, 2012
    Member:
    #71180
    Messages:
    3,288
    Gender:
    Male
    First Name:
    Nick
    PWC, VA
    Vehicle:
    2016 MGM TRD OR 4X4 DCSB
    Tint
    im pretty sure its 89 octane if u are running the v6. I can tell the differance when driving...much less torque
     
  12. Jan 22, 2012 at 11:09 PM
    #12
    VanCity4x

    VanCity4x The shit show

    Joined:
    Aug 1, 2011
    Member:
    #60970
    Messages:
    1,409
    Gender:
    Male
    First Name:
    DJ
    BC
    Vehicle:
    05 Prerunner SAS
    3link 1tons on 40's and sum stuff

    I get 3+ mpg better using 91 on my 4.0. Ive been told the same thing. Wouldnt make a difference in 2.7L
     
  13. Jan 22, 2012 at 11:27 PM
    #13
    Desert Rat

    Desert Rat Well-Known Member

    Joined:
    Jan 3, 2012
    Member:
    #69856
    Messages:
    91
    Gender:
    Male
    Monterey, California
    Vehicle:
    2012 Tacoma DCSB TRD Off Road Double Cab
    3" OME lift, Avid lightbar and sliders, PIAA 525s, custom Baja Rack, SnugTop with Windoors, PopnLock tailgate, power moonroof, ARB awning, Pioneer AVIC-Z140BH, Alpine amp, Pioneers speakers, custom subwoofer.
    Interesting...
     
  14. Jan 22, 2012 at 11:30 PM
    #14
    Warhorseforever

    Warhorseforever Will The Thrill

    Joined:
    May 3, 2011
    Member:
    #56023
    Messages:
    4,788
    Gender:
    Male
    First Name:
    Will
    Sand Lapper
    Vehicle:
    2001 Toyota Tacoma Pre-Runner SR5
    Kenwood KDC-348U HU Kicker DS65 Front Doors Only 2 Polk Audio MM840 Kenwood KAC 8105D for subs SuperCrewSound.com behind rear seat sub box
    No. Search for the other threads present on the subject and read for days.
     
  15. Feb 18, 2012 at 11:53 AM
    #15
    lmikk12

    lmikk12 Active Member

    Joined:
    Feb 7, 2012
    Member:
    #72317
    Messages:
    32
    Gender:
    Male
    Big Bear, CA
    Vehicle:
    12 Tacoma 5 Lug
    Sorry if i am a little late on this but octane ratings on fuel is how they stand up to pressure and heat before igniting themselves,with a higher compression ratio you have to run higher octane fuel so there is no detonation. higher octane fuel will not give you any more power if that is what you are looking for.However using a lower octane fuel can cause preignition or detonation or "knocking" that is small enough that you won't feel it but enough for your motor to retard the timing to save itself, this results in lower mpg's and less power. all it takes is one very small ping, so 89 or 91 would be more of a preventative measure than anything else. This can happen in any motor high compression or low even with higher octane fuel, but its what 3 bucks a fill up, why not.
     
  16. Feb 18, 2012 at 12:56 PM
    #16
    2010TRDtaco

    2010TRDtaco Well-Known Member

    Joined:
    Dec 1, 2011
    Member:
    #68042
    Messages:
    80
    Gender:
    Male
    First Name:
    James
    Oklahoma, muskogee
    Vehicle:
    2012 TX baja DCSB AT barcelona red
    Warn winch, body armor rear bumper, 2x yellow top optima, color matched wheel bead, weather tech mats, ams oil everywhere, De-badged, hard wired radar detector, rear diff. breather extension, k+n, fog light any time, trailer wiring relocate, iridium plugs, LED grill marker lights,
    Only use what your owners manual says, higher octane in a vehical not made for it will cause a build up in the combustion chamber and will eventually make the engine knock
     
  17. Feb 18, 2012 at 1:06 PM
    #17
    1TUFFTRD

    1TUFFTRD WTF

    Joined:
    Feb 4, 2010
    Member:
    #30721
    Messages:
    2,127
    Gender:
    Male
    out and about building powerlines
    Vehicle:
    06 AC with a skewp
    06 With a Skewp.
    In my 2005 manual it says for best performance use 91:notsure:
     
  18. Feb 19, 2012 at 8:22 AM
    #18
    lmikk12

    lmikk12 Active Member

    Joined:
    Feb 7, 2012
    Member:
    #72317
    Messages:
    32
    Gender:
    Male
    Big Bear, CA
    Vehicle:
    12 Tacoma 5 Lug
    Really, did it say why? i have never heard of anything like that.
     
  19. Feb 19, 2012 at 8:31 AM
    #19
    lmikk12

    lmikk12 Active Member

    Joined:
    Feb 7, 2012
    Member:
    #72317
    Messages:
    32
    Gender:
    Male
    Big Bear, CA
    Vehicle:
    12 Tacoma 5 Lug
    I can see what you are trying to say but but carbon deposits are not cause by higher octane fuel they are either caused by a rich air/fuel ratio or oil consumption. but over time carbon deposits can make you vehicle knock.
     
  20. Feb 19, 2012 at 8:45 AM
    #20
    1TUFFTRD

    1TUFFTRD WTF

    Joined:
    Feb 4, 2010
    Member:
    #30721
    Messages:
    2,127
    Gender:
    Male
    out and about building powerlines
    Vehicle:
    06 AC with a skewp
    06 With a Skewp.
    That's why I said my 2005
     
To Top