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Thread: Octane Boost

  1. #1
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    Default Octane Boost

    Ok,,here's a little trick,,and it is cheaper than racing fuel and more controllable.First,you have to be able to find this one product,that product being,,Toluene.You can usually find it at Lowes or Home Depot or your local paint store,because by all description,that's what it is,,paint thinner.This product has an octane rating of 114,it is,,and has been,one of the chief ingredients in boosting octane for many years.Now,,it is true,,that lately the petroleum companies have been boosting with ethanol,which we all know,is not the best for your engine or fuel system components.They still use toluene as well as xylene to control octane levels but,,more than anything,they like the alcohols.As we all know,they did away with the best octane booster for several reasons,,one:it's poiseness and two:it destroyed catalytic converters,that additive being known as TEL,,,tetra-ethyl lead.Back in the "old days,,,they would take a tanker of high octane pump fuel,mix in a huge quantity of TEL,drive around the block several times to mix it up,,vois lah,,racing fuel,,but they can't do that anymore.So,,,my solution,,and this is only when I need it,,is a simple formula.One gallon of toluene,,mixed with 20 gallons of 93 octane pump fuel will yield a one number jump,,now,,this is not a point,,like so many octane boosters advertise,,,this is a whole number,so,,93 becomes 94,,,and as it were,,,2 gallons yield 95 octane and so and so forth.For every gallon of toluene,you jump one whole number.Now,,the downside,,toluene will cost you about $18.00 a gallon,but compared to racing fuel,,which where I live,,averages about 11.00 a gallon,and that's for 100 octane,the toluene is a cheaper bump,than adding racing fuel to your tank,,unless of course that is all you're running for the track.I do it just to get the benefit of a higher octane so I can advance my timing a smidge.All things considered,,it does work very good and when I want to get a few extra horsepower by playing with the timing,I don't have to go looking for someone who sells racing fuel,,which by the way,,is getting REAL hard to find.If anyone has any questions about how I arrived at my formulas,,feel free to give me a shout.

  2. #2
    Resident Dawg & Moderator dawg's Avatar
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    A word of caution!
    toulene and rubber DO NOT MIX!
    IE fuel hoses etc.
    a close friend of mine tried that in his restored 69 mustang and the toulene ate through the hose and the car was fully engulfed in flames.
    if you wanna chance this then use teflon lined hoses.
    I also think its in bad taste to tell people how to boost the octane of their cars when the sponsors livelyhood is the 104+ octane boost ?
    im just saying is all.
    Last edited by dawg; 05-30-2011 at 11:52 AM.
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    CRO Senior Moderator Gtdhw's Avatar
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    112 octane is $8.45 a gallon, and 114 is $8.75 a gallon here and is readily available.

    I also agree with DAWG about the 104.
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    Hey Beaker60, thanks for posting. I got a little lost in your post but it didn't seem to me that you were posting a competitive product more-so than a home remedy, or what "moonshine" is in relation to some Jack Daniels. Personally, I like to go with the options that have meaningful investment in labs and R&D and definitely don't trust myself mixing a Margarita, much less something like this LOL

    The chemical engineer at Gold Eagle told me that 104+ doesn't contain any of the ingredients you listed there, 104+ is a proprietary formulation that uses a different catalyst and definitely does not contain Manganese {MMT} nor lead {TEL}.

    16oz (1 bottle) of 104+ in 25 gallons will yield 2~5 FULL octane numbers (not points) from what you start with. The variation will depend on the specific hydrocarbon blend of the gasoline and the engine's response to the catalyst, but will be within that range.

    Adding more than 1 bottle to 25 gallons will net you nada/zip/zilch as the formula tops off at the 16oz : 25 gallon ratio. So if you need higher than 95/96, Gold Eagle suggests a racing fuel mix.

    104+ will also provide a fuel system cleaner and lubrication (lead substitute).
    Last edited by Marcel; 06-01-2011 at 09:07 PM.

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    Hall of Fame Member john mastalerz's Avatar
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    Quote Originally Posted by Dyemodymousty View Post
    I had a few cars that I ran octane booster in occasionally. Its a quick fix, and with anything that a quick fix, its usually bad. Id say visit a racing octane gas station.
    "Racing octane gas stations" are few and far in between. I think I'll stick with 104 octane boost.

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    Quote Originally Posted by Dyemodymousty View Post
    I had a few cars that I ran octane booster in occasionally. Its a quick fix, and with anything that a quick fix, its usually bad. Id say visit a racing octane gas station.
    Whats bad about it?

  7. #7
    Hall of Fame Member john mastalerz's Avatar
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    I am curious also.

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    CRO Senior Moderator Gtdhw's Avatar
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    me three
    If winning was easy, then the losers would be winners.
    I wish I was the man my dog thinks I am.


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