homemade octane booster that really works!!!!!

Posted by gsxtacy, Aug 29, 2002
Bolt-on Tech - 4G63 intake, exhaust, intake manifold, ignition, fuel system, cooling, etc.

  1. gsxtacy

    gsxtacy Proven Member

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    Clovis, New_Mexico
    Check out my post in Fuel Tuning on how to make your own 100+ octane fuel for cheaper than race gas at the track!!!! I am trying it out tommorow. Well let everyone know. I included links on the Fuel Tuning forum.

    GSXTACY
    #1
  2. rick

    rick Proven Member

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    el paso, Texas
    links? what links?
    #2
  3. RabidDonkeyBoy

    RabidDonkeyBoy Proven Member

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    , Portland_ME
    :rolleyes:

    mix 1 part xylene 115 oct or 1 part toulene 114 oct to 2 parts 93/94 octane gasoline and you'll have 100octane, wow that was hard.

    you can also/should add in 1/10 part Maverls Mystery oil if you are making a big batch ;)
    #3
  4. FourG63 97GST

    FourG63 97GST Proven Member

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    West Palm Beach, Florida
    Try not to blow yourself up, I want to hear the results of your octane booster
    #4
  5. doug

    doug Proven Member

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    , SoFla
    You want links? OK, here's a 231 post thread at DSMTalk about this:

    http://www.dsmtalk.com/forums/showthread.php?s=&threadid=23700

    Do a search there on "xylene" and you can read for hours... :)
    #5
  6. eXploitedGST

    eXploitedGST Proven Member

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    , Milwaukee_WI
    so all we gotta do is add about 4 gallons of Xylene to our gas tank when its about 3/4 full?????
    #6
  7. niterydr

    niterydr Proven Member

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    Blaine, Minnesota
    funny, from what i read, people were paying 8-10 dollars a gallon for the xylene, or 6-8 for the toulene, then you figure atleast $1.50 a gal for 93 octane and your looking at $9.50-11.50 a gal for xylene+93 octane mix (1:1 ratio), and $7.50-$9.50 for the toulene mix (again 1:1 ratio), so you figure splitting the prices in half and your looking anywhere from $3.75 a gallon to 5.75 a gallon. On the other hand, 100 octane around here cost about $3.50 a gallon (or so i remember), and i think i figured out one time a 55 gallon drum of i think it was sunco 112 unleaded (not sure on that one, just remember it was unleaded stuff) came out to be about $6.00 a gallon.
    imo im gonna stick with the real stuff..to much research has gone into modern day fuels for me to try to 'mix' some stuff up, i love making and fabricating things, but i'd like to see long term effects on these cars with jugs of 'paint thinner' and 'cleaner' poured into dsm tanks of 93 octane.
    thats just my $.02
    someone prove me wrong, so i can try it as well :)
    #7
  8. GSX_RCR

    GSX_RCR Proven Member

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    Milwaukee, Wisconsin
    One word: Unleaded.

    Aren't most 100+ octane gas leaded anyways?
    #8
  9. Low Flying GS-T

    Low Flying GS-T Proven Member

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    , POMONA_FOOL!
    Gas staions and alot of tracks have 100oct unleaded, all these mixtures and what not aren't.
    #9
  10. AW4G63

    AW4G63 Proven Member

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    TommyPantsdownville, Ohio
    I just use 109 at our track! Unleaded too!
    #10
  11. MJ98GS-T

    MJ98GS-T Proven Member

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    , Bradenton_Fl
    Xylene-5 gallons for $15.00
    93 octane- $1.50 a gallon

    You need to mix it 1:1 which will give you an Octane of about 101, which is $2.25 a gallon.

    Here you can buy 100 octane for 6.50 to 7.00 a gallon at the pump or 112 octane leaded gas at the track for around 7.00 a gallon ( which you can only fill up if the track is open.
    #11
  12. hostile

    hostile Proven Member

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    Odessa , Texas
    A lot fo you guys are pretty ignorant to the fact. Most gas has 30% xylene in it anyways. So adding Xylene isn't goin to hurt it.

    Overseas they use up to 45% Xylene in their gas thats why they have higher octane at most pumps than we do.
    #12
  13. CL MaNTis GST

    CL MaNTis GST Proven Member

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    , Austin/Brownsville
    where can one get Xylene?
    #13
  14. 2-0turbo

    2-0turbo Proven Member

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    Lynchburg, Virginia
    Who makes the 109? I was almost willing to put money on the fact that 104 is the highest UNLEADED you can get. VP and Sunoco are the two manufacturers I am aware of. I can get 76 Race Fuel (100 octane UNLEADED) for about $4/gallon.
    #14
  15. 2-0turbo

    2-0turbo Proven Member

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    Lynchburg, Virginia
    Lowes, Home Depot.
    #15
  16. CL MaNTis GST

    CL MaNTis GST Proven Member

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    , Austin/Brownsville
    and u just dump say 2 gals of Xylene and 2 gals of 93 oct. pump gas in... and get 4 gals of 101 oct. gas in your tank?
    #16
  17. fivestardsm

    fivestardsm Proven Member

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    , Morley_Michigan
    Two words:AVIATION FUEL I use to work at a body shop and we made a mud truck out of a 57 chevy nomad anyway we were sick of driving to the nearest station to get 100 oct.(45 mins away) So we went 6 miles to a small air strip (really small, grass runway and all) and got 112-116 oct. for $ 3 -$3.50 a gal. This was just 2months ago. Don't know if it's the same every where or we just got a good deal but that's what we do. And oh what a sweet smell!!
    #17
  18. mrmadmax

    mrmadmax Proven Member

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    , Corvallis_OR
    Aviation fuel is leaded. They still use leaded gas in aircraft because most of the engines used in general aviation were built during the lead days, so it's needed to protect the exhaust valves.

    It does smell nice though...:D
    #18
  19. fivestardsm

    fivestardsm Proven Member

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    , Morley_Michigan
    So dont drive by a sniffer ;)

    (for all you emmision legal guys)
    #19
  20. mrmadmax

    mrmadmax Proven Member

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    , Corvallis_OR
    A sniffer? I'd be a little more concerned about plugging your $250 high flow CAT, or at least fouling your O2 sensor!
    #20
  21. rayden

    rayden Proven Member

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    , Ky
    i wished i would have known this before i got layed off. where i used to work had all kinds of Xylene. i could have got it for free as much as i wanted. i heard of people there using it to clean out there carbs. but not race fuel. i may have to go back for a visit soon and stock up. LOL
    #21
  22. CL MaNTis GST

    CL MaNTis GST Proven Member

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    , Austin/Brownsville
    yeah i've heard of using jet fuel. my dad works at the airport here so i'm sure i can get a deal somehow.

    anywho, is this fuel safe for my car? it being leaded and all...
    #22
  23. 2-0turbo

    2-0turbo Proven Member

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    Lynchburg, Virginia
    Cl MaNTis, Jet fuel is totally different. Don't put that in your car unless you never want it to run right again. Jet fuel is Kerosene (aka refined Diesel fuel). You do not want that in a SI engine.

    You people kill me with these octane ratings. Who buys Avgas with 112 octane--I don't think you can? 100LL is pretty much the standard, and it has a LOT of lead in it compared to auto race gas (even though LL mean Low Lead).
    #23
  24. BatmanGSX

    BatmanGSX Proven Member

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    I'd be concerned if you had a CAT instead of a testpipe.
    #24
  25. RabidDonkeyBoy

    RabidDonkeyBoy Proven Member

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    , Portland_ME
    :rofl: yeah go ahead and mix equal parts xylene and 93 octane, thats a little to xylene potent for most any cars fuel system (xylene and toulene in high concentrations will eat plastic and rubber. plus (93 + 115)/2 =104 not 100,

    mix 2 parts 93/94 octane fuel to 1 part xylene(115)/toulene(/114) and you arrive @ (93 + 93 + 115)/3 = 100 if you want to run this fuel all the time i would suggest adding in a bottle or 2 of Marvels Mystery Oil it will add back in a bunch of lubricants that you thinned out mixing in the xylene/toulene and not really affect total octane.
    #25

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