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Message: <blockquote data-quote="am_izham" data-source="post: 634910" data-attributes="member: 5892">i found this on the net long time ago. i have forgotten where i get this from. all i remember is that i did a search on "homebrew octane booster". has anybody here done this before?are any of these chemicals available for purchase here?p/s: don't ask me anything. i'm not a chemical engineer.Fuel FormulasPlease note that I would NOT suggest that a person use the following fuel mixtures without considering the detrimental effects on their engine, vital engine components (O2 sensor, etc), and other potential damage. That said, the information is interesting. Fuel Formulas Formula #1 - TouleneR+M/2.........114Cost...........$2.50/galMixtures with 92 Octane Premiums10%...........94.2 Octanes20%...........96.4 Octanes30%...........98.6 OctanesNotes: Common ingredient in Octane Boosters in a can. 12-16 ounces will onlyraise octane 2-3 *points*, i.e. from 92 to 92.3. Often costs $3-5 for 12-16ounces, when it can be purchased for less than $3/gal at chemical supply houses or paint stores. Formula #2 - XyleneR+M/2.........117Cost...........$2.75/galMixtures with 92 Octane Premiums10%...........94.5 Octanes20%...........97.0 Octanes30%...........99.5 OctanesNotes: Similar to Toulene. 12-16 ounces will only raise octane 2-3 *points*,I.e. from 92 to 92.3. Usually mixed with Toulene and advertised as *raceformula*. Formula #3 - Methyl-tertiary-butyl-ether (MTBE)R+M/2.........118Cost...........$3.50/galMixtures with 92 Octane Premiums10%...........94.6 Octanes20%...........97.2 Octanes30%...........99.8 OctanesNotes: Oxygenate. Very common in octane booster products. Has lower BTUcontent than toulene or xylene, but oxygenate effect makes the gasoline burnbetter and produce more energy. Formula #4 - Methanol or EthanolR+M/2.........101Cost...........$0.60 - $1.75/galMixtures with 92 Octane Premiums10%...........94.3 Octanes (Methanol)10%...........94.7 Octanes (Ethanol)20%...........Not RecommendedNotes: Methanol is wood alcohol. Ethanol is grain alcohol and found in Gasoholin 10% ratios. Both alcohols are mildly corrosive and will eat gas tanklinings, rubber and aluminum if used in excessive ratios. Main ingredient in"Gas Dryers", combine with water. Formula #5 - Isopropyl Alcohol and Tertiary Butyl AlcoholR+M/2.........101Cost...........$0.60-$1.50/galMixtures with 92 Octane Premiums10%...........94.5 Octanes20%...........Not Recommended30%...........Not RecommendedNotes: Similar to Methanol/Ethanol. Isopropyl Alcohol is simply rubbing alcohol.How to make your own octane booster (this is the basic formula of one of the popular octane booster products). To make eight 16 ounce bottles (128 oz = 1gal):100 oz of toulene for octane boost 25 oz of mineral spirits (cleaning agent) 3 oz of transmission fluid (lubricating agent)This product is advertised as "octane booster with cleaning agent *and*lubricating agent!". Diesel fuel or kerosene can be substituted for mineral spirits and light turbine oil can be substituted for transmission fluid. Color can be added with petroleum dyes.</blockquote>

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